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Measurement International System Units (SI) –Mass: kilograms –Length: meters –Time: seconds –Volume: liters –Temperature: Kelvin or ° Celsius

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meters °Celsius seconds kilograms liters SI Units

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Mass vs. Weight??? Mass is the measurement of the amount of matter in a given amount of a substance. Weight is the measure of the pull of gravity on a given mass. BUT...

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In other words... The weight of an object on earth is greater than the weight of the same object on the moon, since the Earth has more gravity than the moon. The mass of the object (the amount of stuff) is the same on the earth as it is on the moon.

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Mass is the amount of stuff. Weight is the affect of gravity (measured by a scale) on a given mass.

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However... On Earth, the mass in grams equals the weight in grams. So for values ON EARTH we often use the terms weight and mass interchangeably. Just be careful, because where gravity values are different from on Earth (the moon, in space, another planet, etc.) the mass will be the same as on Earth but the weight will be different!

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1000 Metric Units... grams equal 1 kilogram MASS

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Metric Units milliliters equal 1 liter VOLUME

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Metric Units... Kelvins or ° Celsius TEMPERATURE

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Metric Units... LENGTH 1000 millimeters = 1 meter 100 centimeters = 1 meter

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Metric Units... TIME 60 seconds = 1 hour

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To measure the length of our classroom in SI you would use A: liters B: meters C: feet D: yards

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To measure a person's body temperature in SI you would use A: degrees Celsius B: degrees Farhenheit C: kilograms D: meters

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To make a recipe using SI units, you would measure flour and sugar in A: cups B: ounces C: meters D: grams

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To measure how much water a tablespoon holds in SI you would use A: cups B: ounces C: milliliters D: liters

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A cubic centimeter (cc) is used to measure volume and is the same as a milliliter. A: True B: False

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64 km = _____ meters A: 64,000 B: 6,400 C: 3200 D: 3.2

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373 g = ______ kg A: B: 3.73 C: 6.5 D: 373,000

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897 mm = _____ cm A: 8970 B: 897 C: 8.97 D: 89.7

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Mass and weight are different because A: weight measures amount of stuff while mass takes into account gravity B: mass measures the amount of stuff while weight measures gravity's affect on mass C: gravity has no affect on weight or mass D: mass is measured in pounds while weight is measured in grams

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Mass is the measure of the amount of material. A: True B: False

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When gravity acts upon a particular mass it is measured as weight. A: True B: False

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A 10kg mass is weighed on Earth and on the moon. The moon has less gravity. Which of the following is true? A: The mass weighs more than 10kg on Earth and less than 10kg on the moon. B: The mass weighs 10 kg on Earth and more than 10 kg on the moon. C: The mass weighs 10 kg on Earth and on the moon. D: The mass weighs 10kgs on Earth and less than 10kgs on the moon.

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Mars has less gravity than Earth. What will the mass of a 41g ball be on Mars? A: more than 41g B: less than 41g C: 41g D: there is no way to tell

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Pedro uses a triple beam balance scale in science lab to measure the mass of an apple. He determines the apple to have a mass of 120 grams. What is the weight of the apple in SI units? A: 5.2 ounces B: 60 grams C: 120 grams D: 0.2 pounds

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A standard sized paperclip has a mass of approximately one gram. What would you estimate to be the mass of a golf ball? A: 45 grams B: 1 kg C:.45 grams D: 10 kg

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Which of the following is NOT a SI unit? A: Kelvins B: kilometers C: degrees Celsius D: degrees Fahrenheit

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Since density is a measure of mass per volume (in other words - mass divided by volume), what SI units would be appropriate for describing density? A: grams/liter B: liters/gram C: cm/gram D: ml/meter

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0.25 liters = ______ mL A: 250 B: 25 C: 2.5 D: 0.25

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To measure the volume of a bucket in SI you would use A: grams B: meters C: cubic centimeters D: ounces

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What is the boiling point of water in SI? A: 0 degrees Celsius B: 100 degrees Celsius C: 212 degrees Fahrenheit D: 100 degrees Fahrenheit

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What is the length of the black line in millimeters? A: 5.7 B: 57 C: 5 and three quarters D: 570

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It is good practice when using a meter stick to measure from the 1 cm mark instead of the end. What is the length of the black line in cm? A: 19.8 B: 18.8 C: 198 D: 188

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What is the temperature reading of the thermometer pictured? A: 28 degrees Fahrenheit B: 28 Kelvin C: 28 degrees Celsius D: 20 degrees Celsius

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The thermometer pictured shows the freezing point of water. Which of the following is true? The freezing point of water A: is zero degrees Celsius and 32 degrees Fahrenheit B: is zero degrees Fahrenheit and 32 degrees Celsius C: is zero Kelvin D: is zero degrees Celsius and zero degrees Fahrenheit

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The thermometer pictured shows the average human body temperature. What is that temperature in SI? A: 98.6 degrees Celsius B: 98.6 degrees Fahrenheit C: 37 degrees Celsius D: 37 degrees Fahrenheit

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