Newtons Third Law (GCSE Physics)

A swimmer pushes water backwards with a force to move forward. Which pair of forces illustrates Newton’s Third Law?

Two ice blocks collide; the force between them is internal to the two-block system. What does Newton’s Third Law say about these forces?

A 0.5 kg toy car rests against a spring and the spring exerts 5 N on the car forward. What force does the car exert on the spring?

A tennis racket hits a ball and applies 200 N during impact. If the contact time is 0.01 s, what impulse does the ball give back to the racket (magnitude and direction)?

A car of mass 1200 kg collides with a barrier and experiences an average force of 6000 N backwards for 0.2 s. According to Newton’s Third Law, what force does the car exert on the barrier during the collision?

Two gears mesh; gear A exerts a clockwise torque on gear B. Newton’s Third Law for forces between the gear teeth implies which of the following?

A hovercraft pushes air downwards to hover. According to Newton’s Third Law, what is the reaction?

A person pushes downward on a chair with 150 N. The chair pushes upward on the person with 150 N. If the person is standing still, which of the following is a correct explanation?

A train engine pulls the wagons forward; each coupling exerts forces between engine and wagon. Which describes the forces at each coupling pair?

When a skateboarder pushes backward on the ground with a force of 120 N, which force acts on the skateboarder according to Newton’s Third Law?

A person rests one hand on a wall and pushes with 20 N. According to Newton’s Third Law, what happens to the wall?