Pressure in solids Quiz
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5 questions, one answer each
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1. A 600 N force acts on an area of 0.50 m². What is the pressure?
- A. 300 Pa
- B. 1200 Pa
- C. 0.0008 Pa
- D. 1200 N
2. A knife is sharpened. What happens to the pressure it exerts for the same force?
- A. It decreases because the area is smaller
- B. It stays the same because the force is the same
- C. It increases because the area is larger
- D. It increases because the area of the edge is smaller
3. The pressure on a surface is 2000 Pa and the contact area is 0.05 m². What is the force?
- A. 100 N
- B. 40 000 N
- C. 0.000025 N
- D. 2050 N
4. Why are tractor tyres wide?
- A. They make the tractor lighter
- B. They give a larger pressure on the soil
- C. They spread the weight over a larger area, so the pressure is smaller
- D. They increase the force on the soil
5. A force of 800 N acts on an area of 0.004 m². What is the pressure?
- A. 3200 Pa
- B. 200 000 Pa
- C. 0.000005 Pa
- D. 20 000 Pa