Pressure, moments and work Quiz
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5 questions, one answer each
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1. A force of 200 N acts on an area of 0.5 m². What is the pressure?
- A. 100 Pa
- B. 0.0025 Pa
- C. 100 000 Pa
- D. 400 Pa
2. A force acts on a surface. Which change would increase the pressure?
- A. Increasing the area
- B. Decreasing the area
- C. Decreasing the force
- D. Doubling both the force and the area
3. A force of 30 N acts at a perpendicular distance of 0.40 m from a pivot. What is the moment?
- A. 12 N m
- B. 75 N m
- C. 0.013 N m
- D. 30.4 N m
4. How much work is done when a 50 N force moves a box 6.0 m in the direction of the force?
- A. 8.3 J
- B. 56 J
- C. 300 J
- D. 0.12 J
5. How does the pressure in a liquid change as you go deeper?
- A. It decreases
- B. It stays the same
- C. It is zero
- D. It increases