Practice Experiments & Facts (4.1) - Chapter 3 : Force and Pressure

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9 questions

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6 sample questions

Question 1.
What is the formula for pressure?
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Remember, it's force divided by area.
Question 2.
What does atmospheric pressure depend on?
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Think about the air surrounding us.
3Question 3.
What is the unit of pressure?
- Pascals
- Newtons
- Watts
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Recall the standard unit for measuring pressure.
4Question 4.
True or False: Atmospheric pressure decreases with altitude.
- True
- False
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Think about mountains and breathing at high altitudes.
Question 5.
You have two containers of different sizes filled with air. The first has a cross-sectional area of 10 cm² and contains 100N of force. The second has an area of 50 cm². What force is needed to achieve the same pressure in the second container?
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Use the pressure formula to find the answer.
Question 6.
An astronaut is on a spacewalk at 300 km above Earth’s surface. Explain how the atmospheric pressure there compares with what we experience at sea level.
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Remember how pressure changes with altitude.

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