Resultant force and vectors Quiz
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5 questions, one answer each
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1. Which pair of quantities are both scalars?
- A. Velocity and displacement
- B. Speed and mass
- C. Weight and distance
- D. Force and speed
2. A trolley is pushed to the right with 15 N and to the left with 9 N. What is the resultant force?
- A. 24 N to the right
- B. 9 N to the left
- C. 6 N to the right
- D. 15 N to the right
3. Two perpendicular forces of 9 N and 12 N act on an object. What is the size of the resultant?
- A. 15 N
- B. 21 N
- C. 3 N
- D. 108 N
4. A car moves along a straight road at a constant 20 m/s. What can you say about the forces on it?
- A. There is a resultant force in the direction of motion
- B. The forces are unbalanced
- C. No forces act on the car at all
- D. The forces are balanced and the resultant is zero
5. Which statement about weight is correct?
- A. Weight is a scalar with no direction
- B. Weight is a force, so it is a vector that acts downwards
- C. Weight is the same thing as mass
- D. Weight is measured in kilograms