Force, mass and acceleration (a = (v – u)/t)

12 questions

1. Which of the following scientists developed three laws of motion?
2. Which of the following forces opposes the movement of one solid object across the surface of another?
3. Which of the following is the correct relationship between acceleration, change in velocity and time?
4. A sledge is pulled horizontally across flat ice with a rope. The force of the rope on the sledge is 400 N and a frictional force of 100 N opposes its motion.What is the resultant force on the sledge?
5. Which of the following is the correct unit of acceleration?
6. A scooter accelerates from rest to 18 m/s in 12 s.Calculate the acceleration of the scooter.
7. Match the following key terms to their definitions.
8. Which of these factors needs to be kept constant when investigating the effect of force on acceleration using an air track, glider and set of hanging masses?
9. Starting with the smallest, sort the following in order of increasing resultant force.
10. Calculate the acceleration of a dynamics trolley of mass 0.80 kg when a resultant force of 2.0 N acts on it.
11. A resultant force of 2.5 kN causes a model rocket to accelerate at 5.0 m/s^2. Calculate the mass of the rocket.
12. In an experiment, a glider of mass 0.25 kg accelerates along an air track, from rest to a velocity of 1.20 m/s in 0.50 s. What is the size of the resultant force acting on the glider?

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