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27 Cards in this Set
- Front
- Back
what is weight? |
the measure of the force of gravity on you |
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if a planet is more massive than earth, your weight would be... |
more (x2) |
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if a planet is less massive than earth, your weight would be... |
less (about 1/6) |
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what pulls down mechanisms inside scale? |
weight |
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what do mechanisms cause? |
beams, or springs inside the scale that move |
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what is the amount of beam movement depended on? |
weight |
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what is mass? |
the amount of matter in an object is |
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does mass change? and why?
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no because it doesnt change even if the force of gravity changes |
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does the mass in your body change? |
no |
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is mass a chemical or physical property? |
physical property |
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what do scientists use to measure the properties of matter? |
the international system of units |
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what is the SI unit of mass? |
kilograms (kg) |
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how many grams are in a kilogram? |
0.001 |
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what is volume? |
the amount of space that an object takes up |
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do gases have volume?
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yes |
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what is the SI unit of volume? |
cubic mete (m), cubic centimeters (cm), liter (l), milliliter (mL) |
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how are volumes of liquid measured? |
graduated cylinder |
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what are the two formulas for calculating the volume? |
length x width x height units = cm x cm x cm = cm cubed |
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does a kilogram of sand take up less or more space than a kilo of feathers? |
less |
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is density a important property of mass? |
yes |
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what is density? |
a measure of the mass of a material in a given volume |
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how can density be expressed? |
g/cm cubed |
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can volume be measured by milliliters? |
yes |
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what is formula for density? |
density = mass
volume |
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will objects with greater densities than water float or sink? |
sink |
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will objects with less density than water float or sink? |
float |
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what is density a physical property of?
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a substance |