Contact and Non-Contact Forces Quiz
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5 questions, one answer each
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1. Which of the following is a contact force?
- A. A. Gravitational force
- B. B. Magnetic force
- C. C. Tension
- D. D. Electrostatic force
2. Which of the following is a non-contact force?
- A. A. Friction
- B. B. Normal contact force
- C. C. Air resistance
- D. D. Magnetic force
3. What is the correct equation for the weight of an object?
- A. A. W = m/g
- B. B. W = mg
- C. C. W = m + g
- D. D. W = g/m
4. A 20 kg object is taken to the Moon, where the gravitational field strength is 1.6 N/kg (compared with 9.8 N/kg on Earth). What happens to its mass and weight?
- A. A. Both mass and weight stay the same
- B. B. Mass stays the same, weight decreases
- C. C. Mass decreases, weight stays the same
- D. D. Both mass and weight decrease
5. A student wants to work out where an object's weight effectively acts when analysing its stability on a slope. Which point should they use?
- A. A. The point where the object touches the slope
- B. B. The object's highest point
- C. C. The object's centre of mass
- D. D. Any point on the object, it does not matter