Term
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Definition
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Term
| What can force be measured in? |
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Definition
n/m2 or pascals
1 n/m2 = 1 Pascal |
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Term
| Which of the three states of matter can be compressed |
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Definition
If gas is sealed in a container, far enough apart to still be a gas, external force applied is absorbed and the gas is compressed
Solid and liquid particles are almost as close as they can be.
They are incompressible. |
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Term
| What is earths atmospheric pressure and why does air stay on the earth? |
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Definition
| The earth's atmospheric pressure is approx. 160 km. Gravity keeps the envelope of air around Earth |
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Term
| What happens to your body when there is a change of altitude? |
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Definition
| It there is a difference of altitude great enough, your ears will equalize making your ears ‘pop’ There are less air particles as the elevation increases. |
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Term
| How do you measure air pressure? |
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Definition
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Term
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Definition
| If the air pressure in a container is lower than the air pressure outside, the container walls will buckle in. |
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