Form 5 Chapter 1 Force and Motion II

Front

What happens to the weight of a man in a lift if the rope is broken?

Back

0N (the man will be in free fall)

Front

If a man pulls a rope with 100N and a woman pulls with 80N, which direction will the woman move?

Back

20N towards right (the man exerts a greater force)

Front

What is the resultant force when two equal forces act in opposite directions?

Back

0N (the forces cancel each other out)

Front

What is the resultant force when a force of 50N acts to the right and a force of 30N acts to the left?

Back

20N towards right (net force is the difference in forces)

Front

Define force.

Back

A push or pull acting on an object, measured in Newtons (N).

Front

What is inertia?

Back

The tendency of an object to resist changes in its state of motion.

Front

State Newton's First Law of Motion.

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

Front

What is the formula for calculating weight?

Back

Weight (W) = mass (m) × gravitational acceleration (g).

Front

What is gravitational acceleration on Earth?

Back

Approximately 9.81 m/s².

Front

Define resultant force.

Back

The single force that represents the vector sum of all individual forces acting on an object.