I. Measurement Metric Ruler 10:56 10/29/13 Sarah Schultz Yali I, 10/30/13 7:21
Q: Which of the units in the metric system are the least used?
A: The deci, hecto and dekameter(or gram, liter.... you get the idea)
Yali I, 10/30/13 6:56
Fact- specific heat is the time in which something takes to heat up or cool down. Justin W 8:00 AM 10/31
Fact: Measurement dated back to the ancient Egypt. Ancient Egyptians measured the sun to determine time. They also had to measure so they could get exactly each side to face North, South, East, and west. Ding Ding S 7:15 10/29/13
Fact - Measurement must be accurate and precise. The instrument used to measure something must be calibrated. Kevin Y. 10-29 8:27pm
Fact - The English systems measure things in pounds, and yards, Metric system goes by grams and meters. Justin Wells 8:42 10/29/13
Kilo = Thousand
Hecto = Hundred
Deca = Ten
Base = One
Deci = Tenth
Centi = Hundredth
Milli = Thousandth Kevin Y. 10-29 8:49pm
Fact: You measure to:
- compare things to one another
- ensure things fit
- understand the world around you Olivia G 6:08 10/29/13
Fact: Congress can fix the measurement mess, (i.e. conversions from English to Metric), but counter-arguments state that the conversion from English to Metric would cause great expense in industry and widespread confusion across the general public.
Divya B3:03 PM 10/29/13
Q: What is the difference between accuracy and precision?
A: Accuracy is how close you are to the actual measurement. Precision is in conducting the procedure correctly, limiting human error. Ben S. 10-29 4:11 PM
This tool is called a triple beam balance:
The scale is used to measure weight, in grams. Eddie V. 10/30/2013 10:39
Q: What tool is used to measure temperature?
A: A Celcius thermometer Justin W. 10/29/13 8:40 PM
Fact: In science we use the metric system instead of the English system because the metric system is base ten. The base ten system makes doing conversions easier and quicker. Leanna U. 10/29 4:22
Q: Identify [2] items that people used before a standard of measurement was designed and the term that applied to this type of system. A: Body parts and items from agriculture; this was a crude system of measurement.
Lisa S. 10-28 8:11am
Q:What is the difference between quantitative and qualitative observations?
A:The difference between quantitative and qualitative observations is that a quantitative observation contains more statistics and measurements. They are more mathematical. Qualitative observations are observations that are detailed descriptions of something. They are more descriptive than statistical. Emily W 10/29/13 2:58 Q: What is used to measure
Lisa S. 10-28 9:51 am
Metric system is based on ten and is universal. Colin S. oct 29 10:50
The metric ruler (above) and how many centimeters equal how many millimeters. Lynn F. 10-29 5:06
Q: What is the difference between the Metric system and the English system?
A: The Metric system is more commonly used around the world and is based on the number 10. The English system is used mostly in US. Ashwin S. 10/29 3:49
Justin W. 8:56 10/29/13
Q: does heat move to cold or cold move to heat?
A: Heat moves to cold locations
Q: Why is it important that everyone uses the same standard units of measurement
A: It is important so that when measuring something everyone is not confused as to witch measurement it is in Dan W. 632pm 10-29-13
Peter Yu 10:24pm 10/30/13
II. Equipment — Measurement — Unit[s]
Yali I, 10/30/13 7:03
Fact:The triple beam balance should be calibrated bakc to zero each time you use it. Sarah S 10/29/13 8:31
Ding Ding S 7:2510/29/13 A fun video on how to use a triple beam balance and what each part is called:
This is a celsius thermometer. It is used to find the average amount of heat in an object/room.
Olivia G 6:15 10/29/13
a. Length, Surface Area, & Volume
Q: What is the point of measurement?
A: To compare objects, make things fit, and understand the things around us.
Adi E. 10/29 10:58am
Q: What are some instruments used to measure?
A: Some instruments used to measure are meter sticks tape measures and metric rulers.
Ben S. 10-29 5:03 PM
Q: What is the difference between length, surface area, and volume? Be sure to support your answer using an appropriate unit for each. A: Length is the distance between two points and is one-dimensional [cm], surface area is l x w and is two-dimensional [cm2], and volume is l x w x h and is three-dimensional [cm3].
Lisa S. 10-28 8:11am
Weight is measures in milligrams, grams, and kilograms. Eddie V. 10/30/2013 10:29
Length is measured in mm, cm, and m, with a metric ruler or meter stick. Emily Z. 10/29/13 10:57 AM
A ruler. Emily Z. 10.31.13 8:14 AM
b. Mass & Weight
Olivia G 10/30/13 3:42
Fact: Mass stays the same throughout the entire universe. Lynn F. 10-30 6:20
Q: What is mass?
A: Mass is the amount of matter that makes up an object.
Adi E. 10/29 1:38pm
Q: Can you measure 1 kg on a triple beam? Be sure to explain why and/or why not. A: No, because the maximum mass a triple beam balance can measure is 610.0 g and 1 kg = 1000 g.
Lisa S. 10-28 8:11am
Q: What is the smallest increment on a triple beam balance?
A: one 10th of a gram Colin S. oct 29 1:45
The triple beam balance is a single pan balance with three calibrated beams. The triple beam balance measures in grams. Emily W 10/30/13 2:58
Fact: Mass never changes when the gravity changes but weight does. Ding DIng S 10/30/13 8:15
Scales can also be used to measure mass Sam E. 10-29 2:44
This is a triple beam balance; an instrument used to measure mass. BenS. 10-29 3:46 PM
Water Displacement
Kevin Y. 10-30 9:35pm
This is a pocket scale, a tool that measures weight. (but not mass) Peter Yu 10/30 5:58
Fact: Weight equals mass times surface gravity. Lynn F. 10-29 4:32
Q: How do you find the mass of an object using the triple-beam balance?
A: You first move the weights on the beams to the far left, and zero the scale by turning the knob on the left until the beams are straight. Then, you put the object being measured on the scale. Next, you move the weights left and right to increase or decrease the counterweight, making sure the large and medium ones snap into place. Pay attention to the marking on the far right of the beam, as you are aiming to match that up with the line beside it. Finally, read the scales of the beams where the weights are pointing to, and add the values up to get your mass.
c. Liquid Volume & Displacement
F: The tool you use to measure liquid volume is called a graduated cylinder. It has increments based in milliLiters. Usually, the smaller the graduated cylinder the more accurate and significant digits there'll be.
Adi E. 10/29 1:49pm
Q: What is the term for the curve that the liquid in a graduated cylinder forms and where do you read to be most accurate? A: The curve is called the meniscus and you read it at the center, lowest point.
Lisa S. 10-28 8:11am
The displaced object must be completely submerged to be accurate Ashwin S. 10/29 3:37 Fact: To completely submerge an object in a graduated cylinder you may use a pen or pencil tip, but take care not to submerge it to. Dan W. 632pm 10-29-13
This video thoroughly explains how to make an accurate measurement from a graduated cylinder.
Ben S. 10-29 3:58 PM
Fact: You must read the bottom of the meniscus line in order to be accurate. Divya B. 5:07 pm, 10/30/13
Q: How large is a liter? A: A liter is about the size of a carton of milk. Emily Z. 8:06 AM 10/31/13f d. Temperature
Q: What are the freezing and boiling points in degrees Celcius?
A: They are 0 degrees Celcius, and 100 degrees Celcius respectively.
Kevin Y. 10-30 9:39pm
A thermometer, preferably Celcius, is used to measure temperature.
Kevin Y. 10-29 10:58am
Fact: The reason the alcohol inside the thermometer is colored is because this way it is easier to see, therefore making ones measurement more precise and accurate.
Justin W 8:50 10/29/13
Fact-mass is a factor of weight, but weight is not a factor of mass
Ben S. 10-29 4:37 PM
Q: What is the tool used to measure volume by displacement, and in which units does it measure?
A: The graduated cylinder uses milliliters to measure volume. Eddie V. 10/30/2013 10:48
Adi E.
Q: What is Equilibrium?
A: The equilibrium is the point where an object that's hotter than its surroundings loses its heat because heat goes to cold and overall the object becomes the same temperature as its surroundings.
Find measure in Celsius:
Adi E. 10/29 1:56pm
Q: What is the scientific principle behind how the red fluid rises and falls within the tube inside the Celsius thermometer? A: The liquid expands with an increase in heat so it is forced up the tube and “rises”, and it contracts with a decrease in heat so it retracts back down the tube or “drops”.
Lisa S. 10-28 8:11am
Temperature comparisons. Emily Z. 10/31/13 8:11 AM
You must immerse the thermometer to the line indicated on it. Peter Yu 10/29/12 1:41pm
Q: What are the units used with temperature?
A: You can use degrees Celsius or Fahrenheit. Sam E. 10-29 2:38
Q:What is the freezing and boiling point of water in Celsius?
A:The freezing point is 0 degrees Celsius. The boiling point is 100 degrees Celsius. Emily W 10/29/13 3:37
Q: Define specific heat.
A: Specific heat is the object's ability to warm up and cool down. The faster the object's ability to warm up and cool down, the lower the specific heat.
Divya B 3:10 pm 10/29/13
Q: What is temperature?
A: Temperature is the average amount of heat. Leanna U. 10/30 3:08
Fact: the more incrumints on a measuring tool the more significant digits. This is because you can tell more precisely the size, length, or temperature of the object. Dan W. 632pm 10-29-13
Equilibrium Ashwin Sreevatsa 10/30 4:04 III. Significant Digit
Sarah S 8:10 10/30/13 Finding a significant digit. Yali I, 10/30/13 7:05
Q: In the number 060.00570, how many digits are significant? A: 5. 6, 2 zeroes, 5 and 7. David Z 10/31 8:13
What are increments?
Increments are the amount of change on a scale or between calibrated lines.
Q: Would a beaker with increments of 100 or a graduated cylinder with increments of 1 have more significant digits? Why?
A: The graduated cylinder would have more significant digits because smaller increments allow the person measuring to be more accurate. There fore adding more
significant digits.
Q: How many significant digits are in the number 0.50076?
A: There are five significant digits because zeros on the left hand side of a number never count. Sarah S 7:47 10/29/13 Olivia G 10/29/13 6:15
The number 00340.000594 has 8 significant digit. All non-zero digits (3, 4, 5, 9, and 4) are significant. The three zeroes before 5 are significant, because they are after the decimal point. Eddie V. 10/30/2013 10:56
Q: How is a significant digit different from a non-significant digit?
A: A significant digit shows how precise a measurement is. More significant digits, such as more decimals, increases representation of how accurate a number is to the actual value. It can sort of be thought of as the opposite of "rounding."
Q: What is a Significant Digit and how does it make measurements more accurate?
A: A significant digit (sig fig) are digits that make make measurements more accurate by adding digits to the original value. For example if you measured 200cm and it looked a little over 200cm, you could add a .5cm which makes it 200.5cm. That makes the measurement more accurate to the exact measurement than leaving it 200cm. Ding Ding S 10/29/13 Q: How does having equipment with more calibrated lines provide a more accurate measurement? A: There are more significant digits to record as the equipment measures by 1s or 2s compared to 10s or 100s.
Lisa S. 10-28 8:11am
Ben S. 10-29 4:51 PM
Divya B. 3:19 pm, 10/29/13.
Lynn F. 10-29 4:55
You can claim significant digits to the most precise increment on your instrument, plus one estimated digit at the end Peter Yu 10/29/12 10:57am
Sam E. 10-29 2:48
The rules of significant digits:
All non-zero numbers are significant
zeros between non zero numbers are significant
leading zeros are not significant
Trailing zeros are not significant unless there's a decimal point Colin S. oct 29 1:50 Leanna U 10/29 4:07
The more increments there are on any kind of measuring tool, the more significant digits there can be. Therefore, you can be more accurate.
and precise. Emily W 10/29/13 3:03
Ashwin S. 10/29 3:41
Dan W 643pm 10-19Its a song!
Significant digits show the accuracy of values. Emily Z. 10/31/13 8:15 AM
IV. Conversions[moving by the decimal point and dimensional analysis]
Fact: When converting from cm to meters move the decimal point 2 times to the left to get a smaller number.100cm=1m Ding DIng S 8:11 10/30/13
Sarah Schultz 10/29/13 8:25
Fact: When you convert from kilometers to meters you move the decimal three spaces to the right Yali I, 10/30/13 7:09
Fact: There are 10 cm in 1 decimeter. Olivia G 10/29/13 6:17
Colin S. oct 29 1:54
Q: What are the two methods of converting units in the metric system?
A: MBTDP and Dimensional Analysis. Eddie V. 10/30/2013 10:29
Q: How do you convert from kilometers to meterseters?A: You multiply by 1000, moving three places to the right [for example – 18.9 km = 18900 m]Lisa S. 10-8:11am
Conversion table. Leanna U. 10/29 4:16
Q: How do you convert from meters to centimeters?
A: You divide by 100, moving the decimal point two places to the right (for example - 29 m = 2900 cm) Ben S. 10-29 3:59 PM
Q:What is the equation for Dimensional Analysis?
A: # and unit you have X unit converting to ÷ unit converting from # unit you get Ding DIng S 10/29/13 7:41pm
Dan W 649pm 10-29 Q: How many deci meters are there in one meter.
A: There are 10 deci meters in one meter, you can tell this because deci means 10.
Q: How many milliliters are in a liter?
A: 1,000 milliliters in one liter. Ashwin S. 10-29 11:00 AM
10mm=1cm
10cm=1dm
10dm=1m
100dm=1km
As you go up each prefix, you multiply by 10. the lower you go, you divide by 10 for each prefix you go by. Emily W 10/29/13 3:39
Q: How many centimeters are in one meter?
A: 100 cm are in one meter. This is because a meter is 2 decimal places to the right of a centimeter and two decimal places to the right of 1 is 100. Lynn F. 10-29 5:11
Different units in the metric system can easily be converted
for example: 1ml is equal to 1 cm cubed
Mectric measurements
I. Measurement
Yali I, 10/30/13 7:21
Q: Which of the units in the metric system are the least used?
A: The deci, hecto and dekameter(or gram, liter.... you get the idea)
Yali I, 10/30/13 6:56
Fact- specific heat is the time in which something takes to heat up or cool down.
Justin W 8:00 AM 10/31
Fact: Measurement dated back to the ancient Egypt. Ancient Egyptians measured the sun to determine time. They also had to measure so they could get exactly each side to face North, South, East, and west.
Ding Ding S 7:15 10/29/13
Fact - Measurement must be accurate and precise. The instrument used to measure something must be calibrated.
Kevin Y. 10-29 8:27pm
Fact - The English systems measure things in pounds, and yards, Metric system goes by grams and meters.
Justin Wells 8:42 10/29/13
Kilo = Thousand
Hecto = Hundred
Deca = Ten
Base = One
Deci = Tenth
Centi = Hundredth
Milli = Thousandth
Kevin Y. 10-29 8:49pm
Fact: You measure to:
- compare things to one another
- ensure things fit
- understand the world around you
Olivia G 6:08 10/29/13
Fact: Congress can fix the measurement mess, (i.e. conversions from English to Metric), but counter-arguments state that the conversion from English to Metric would cause great expense in industry and widespread confusion across the general public.
Divya B 3:03 PM 10/29/13
Q: What is the difference between accuracy and precision?
A: Accuracy is how close you are to the actual measurement. Precision is in conducting the procedure correctly, limiting human error.
Ben S. 10-29 4:11 PM
This tool is called a triple beam balance:
The scale is used to measure weight, in grams.
Eddie V. 10/30/2013 10:39
Q: What tool is used to measure temperature?
A: A Celcius thermometer
Justin W. 10/29/13 8:40 PM
Fact: In science we use the metric system instead of the English system because the metric system is base ten. The base ten system makes doing conversions easier and quicker.
Leanna U. 10/29 4:22
Q: Identify [2] items that people used before a standard of measurement was designed and the term that applied to this type of system.
A: Body parts and items from agriculture; this was a crude system of measurement.
Lisa S. 10-28 8:11am
Q:What is the difference between quantitative and qualitative observations?
A:The difference between quantitative and qualitative observations is that a quantitative observation contains more statistics and measurements. They are more mathematical. Qualitative observations are observations that are detailed descriptions of something. They are more descriptive than statistical.
Emily W 10/29/13 2:58
Q: What is used to measure
Lisa S. 10-28 9:51 am
Metric system is based on ten and is universal.
Colin S. oct 29 10:50
The metric ruler (above) and how many centimeters equal how many millimeters.
Lynn F. 10-29 5:06
Q: What is the difference between the Metric system and the English system?
A: The Metric system is more commonly used around the world and is based on the number 10. The English system is used mostly in US.
Ashwin S. 10/29 3:49
Justin W. 8:56 10/29/13
Q: does heat move to cold or cold move to heat?
A: Heat moves to cold locations
Q: Why is it important that everyone uses the same standard units of measurement
A: It is important so that when measuring something everyone is not confused as to witch measurement it is in
Dan W. 632pm 10-29-13
Peter Yu 10:24pm 10/30/13
II. Equipment — Measurement — Unit[s]
Yali I, 10/30/13 7:03
Fact:The triple beam balance should be calibrated bakc to zero each time you use it.
Sarah S 10/29/13 8:31
Ding Ding S 7:2510/29/13
A fun video on how to use a triple beam balance and what each part is called:
This is a celsius thermometer. It is used to find the average amount of heat in an object/room.Olivia G 6:15 10/29/13
a. Length, Surface Area, & Volume
Q: What is the point of measurement?
A: To compare objects, make things fit, and understand the things around us.
Adi E. 10/29 10:58am
Q: What are some instruments used to measure?
A: Some instruments used to measure are meter sticks tape measures and metric rulers.
Ben S. 10-29 5:03 PM
Q: What is the difference between length, surface area, and volume? Be sure to support your answer using an appropriate unit for each.
A: Length is the distance between two points and is one-dimensional [cm], surface area is l x w and is two-dimensional [cm2], and volume is l x w x h and is three-dimensional [cm3].
Lisa S. 10-28 8:11am
Weight is measures in milligrams, grams, and kilograms.
Eddie V. 10/30/2013 10:29
Length is measured in mm, cm, and m, with a metric ruler or meter stick.
Emily Z. 10/29/13 10:57 AM
A ruler.
Emily Z. 10.31.13 8:14 AM
b. Mass & Weight
Olivia G 10/30/13 3:42
Fact: Mass stays the same throughout the entire universe.
Lynn F. 10-30 6:20
Q: What is mass?
A: Mass is the amount of matter that makes up an object.
Adi E. 10/29 1:38pm
Q: Can you measure 1 kg on a triple beam? Be sure to explain why and/or why not.
A: No, because the maximum mass a triple beam balance can measure is 610.0 g and 1 kg = 1000 g.
Lisa S. 10-28 8:11am
Q: What is the smallest increment on a triple beam balance?
A: one 10th of a gram
Colin S. oct 29 1:45
The triple beam balance is a single pan balance with three calibrated beams. The triple beam balance measures in grams.
Emily W 10/30/13 2:58
Fact: Mass never changes when the gravity changes but weight does.
Ding DIng S 10/30/13 8:15
Scales can also be used to measure mass
Sam E. 10-29 2:44
This is a triple beam balance; an instrument used to measure mass.
Ben S. 10-29 3:46 PM
Water Displacement
Kevin Y. 10-30 9:35pm
This is a pocket scale, a tool that measures weight. (but not mass)
Peter Yu 10/30 5:58
Fact: Weight equals mass times surface gravity.
Lynn F. 10-29 4:32
Q: How do you find the mass of an object using the triple-beam balance?
A: You first move the weights on the beams to the far left, and zero the scale by turning the knob on the left until the beams are straight. Then, you put the object being measured on the scale. Next, you move the weights left and right to increase or decrease the counterweight, making sure the large and medium ones snap into place. Pay attention to the marking on the far right of the beam, as you are aiming to match that up with the line beside it. Finally, read the scales of the beams where the weights are pointing to, and add the values up to get your mass.
c. Liquid Volume & Displacement
F: The tool you use to measure liquid volume is called a graduated cylinder. It has increments based in milliLiters. Usually, the smaller the graduated cylinder the more accurate and significant digits there'll be.
Adi E. 10/29 1:49pm
Q: What is the term for the curve that the liquid in a graduated cylinder forms and where do you read to be most accurate?
A: The curve is called the meniscus and you read it at the center, lowest point.
Lisa S. 10-28 8:11am
The displaced object must be completely submerged to be accurate
Ashwin S. 10/29 3:37
Fact: To completely submerge an object in a graduated cylinder you may use a pen or pencil tip, but take care not to submerge it to.
Dan W. 632pm 10-29-13
This video thoroughly explains how to make an accurate measurement from a graduated cylinder.
Ben S. 10-29 3:58 PM
Fact: You must read the bottom of the meniscus line in order to be accurate.
Divya B. 5:07 pm, 10/30/13
Q: How large is a liter?
A: A liter is about the size of a carton of milk.
Emily Z. 8:06 AM 10/31/13f
d. Temperature
Q: What are the freezing and boiling points in degrees Celcius?
A: They are 0 degrees Celcius, and 100 degrees Celcius respectively.
Kevin Y. 10-30 9:39pm
A thermometer, preferably Celcius, is used to measure temperature.
Kevin Y. 10-29 10:58am
Fact: The reason the alcohol inside the thermometer is colored is because this way it is easier to see, therefore making ones measurement more precise and accurate.
Justin W 8:50 10/29/13
Fact-mass is a factor of weight, but weight is not a factor of mass
Ben S. 10-29 4:37 PM
Q: What is the tool used to measure volume by displacement, and in which units does it measure?
A: The graduated cylinder uses milliliters to measure volume.
Eddie V. 10/30/2013 10:48
Adi E.
Q: What is Equilibrium?
A: The equilibrium is the point where an object that's hotter than its surroundings loses its heat because heat goes to cold and overall the object becomes the same temperature as its surroundings.
Find measure in Celsius:
Adi E. 10/29 1:56pm
Q: What is the scientific principle behind how the red fluid rises and falls within the tube inside the Celsius thermometer?
A: The liquid expands with an increase in heat so it is forced up the tube and “rises”, and it contracts with a decrease in heat so it retracts back down the tube or “drops”.
Lisa S. 10-28 8:11am
Temperature comparisons.
Emily Z. 10/31/13 8:11 AM
You must immerse the thermometer to the line indicated on it.
Peter Yu 10/29/12 1:41pm
Q: What are the units used with temperature?
A: You can use degrees Celsius or Fahrenheit.
Sam E. 10-29 2:38
Q:What is the freezing and boiling point of water in Celsius?
A:The freezing point is 0 degrees Celsius. The boiling point is 100 degrees Celsius.
Emily W 10/29/13 3:37
Q: Define specific heat.
A: Specific heat is the object's ability to warm up and cool down. The faster the object's ability to warm up and cool down, the lower the specific heat.
Divya B 3:10 pm 10/29/13
Q: What is temperature?
A: Temperature is the average amount of heat.
Leanna U. 10/30 3:08
Fact: the more incrumints on a measuring tool the more significant digits. This is because you can tell more precisely the size, length, or temperature of the object.
Dan W. 632pm 10-29-13
Equilibrium
Ashwin Sreevatsa 10/30 4:04
III. Significant Digit
Sarah S 8:10 10/30/13 Finding a significant digit.
Yali I, 10/30/13 7:05
Q: In the number 060.00570, how many digits are significant?
A: 5. 6, 2 zeroes, 5 and 7.
David Z 10/31 8:13
What are increments?
Increments are the amount of change on a scale or between calibrated lines.
Q: Would a beaker with increments of 100 or a graduated cylinder with increments of 1 have more significant digits? Why?
A: The graduated cylinder would have more significant digits because smaller increments allow the person measuring to be more accurate. There fore adding more
significant digits.
Q: How many significant digits are in the number 0.50076?
A: There are five significant digits because zeros on the left hand side of a number never count.
Sarah S 7:47 10/29/13
Olivia G 10/29/13 6:15
The number 00340.000594 has 8 significant digit. All non-zero digits (3, 4, 5, 9, and 4) are significant. The three zeroes before 5 are significant, because they are after the decimal point.
Eddie V. 10/30/2013 10:56
Q: How is a significant digit different from a non-significant digit?
A: A significant digit shows how precise a measurement is. More significant digits, such as more decimals, increases representation of how accurate a number is to the actual value. It can sort of be thought of as the opposite of "rounding."
Q: What is a Significant Digit and how does it make measurements more accurate?
A: A significant digit (sig fig) are digits that make make measurements more accurate by adding digits to the original value. For example if you measured 200cm and it looked a little over 200cm, you could add a .5cm which makes it 200.5cm. That makes the measurement more accurate to the exact measurement than leaving it 200cm.
Ding Ding S 10/29/13
Q: How does having equipment with more calibrated lines provide a more accurate measurement?
A: There are more significant digits to record as the equipment measures by 1s or 2s compared to 10s or 100s.
Lisa S. 10-28 8:11am
Ben S. 10-29 4:51 PM
Divya B. 3:19 pm, 10/29/13.
Lynn F. 10-29 4:55
You can claim significant digits to the most precise increment on your instrument, plus one estimated digit at the end
Peter Yu 10/29/12 10:57am
Sam E. 10-29 2:48
The rules of significant digits:
All non-zero numbers are significant
zeros between non zero numbers are significant
leading zeros are not significant
Trailing zeros are not significant unless there's a decimal point
Colin S. oct 29 1:50
Leanna U 10/29 4:07
The more increments there are on any kind of measuring tool, the more significant digits there can be. Therefore, you can be more accurate.
and precise.
Emily W 10/29/13 3:03
Ashwin S. 10/29 3:41
Dan W 643pm 10-19Its a song!
Significant digits show the accuracy of values.
Emily Z. 10/31/13 8:15 AM
IV. Conversions [moving by the decimal point and dimensional analysis]
Fact: When converting from cm to meters move the decimal point 2 times to the left to get a smaller number.100cm=1m
Ding DIng S 8:11 10/30/13
Sarah Schultz 10/29/13 8:25
Fact: When you convert from kilometers to meters you move the decimal three spaces to the right
Yali I, 10/30/13 7:09
Fact: There are 10 cm in 1 decimeter.
Olivia G 10/29/13 6:17
Colin S. oct 29 1:54
Q: What are the two methods of converting units in the metric system?
A: MBTDP and Dimensional Analysis.
Eddie V. 10/30/2013 10:29
Q: How do you convert from kilometers to meterseters?A: You multiply by 1000, moving three places to the right [for example – 18.9 km = 18900 m]Lisa S. 10-8:11am
Conversion table.
Leanna U. 10/29 4:16
Q: How do you convert from meters to centimeters?
A: You divide by 100, moving the decimal point two places to the right (for example - 29 m = 2900 cm)
Ben S. 10-29 3:59 PM
Q:What is the equation for Dimensional Analysis?
A: # and unit you have X unit converting to
÷ unit converting from # unit you get
Ding DIng S 10/29/13 7:41pm
Dan W 649pm 10-29
Q: How many deci meters are there in one meter.
A: There are 10 deci meters in one meter, you can tell this because deci means 10.
Q: How many milliliters are in a liter?
A: 1,000 milliliters in one liter.
Ashwin S. 10-29 11:00 AM
10mm=1cm
10cm=1dm
10dm=1m
100dm=1km
As you go up each prefix, you multiply by 10. the lower you go, you divide by 10 for each prefix you go by.
Emily W 10/29/13 3:39
Q: How many centimeters are in one meter?
A: 100 cm are in one meter. This is because a meter is 2 decimal places to the right of a centimeter and two decimal places to the right of 1 is 100.
Lynn F. 10-29 5:11
Different units in the metric system can easily be converted
for example: 1ml is equal to 1 cm cubed
Colin S. oct30 2:50
Divya B, 3:27 pm 10/29/13