Understanding Forces

What is the fundamental definition of force?

• A form of matter

• A state of rest

• A push or pull

• A type of energy

Which of the following is NOT an effect of force?

• Stopping motion

• Changing color

• Producing motion

• Changing direction

What is the effect of applying brakes on a moving car?

• The car stops

• The car speeds up

• The car changes direction

• The car becomes lighter

What type of force is exerted when you push a chair?

• Magnetic force

• Contact force

• Non-contact force

• Electric force

Which of the following is a non-contact force?

• Frictional force

• Gravitational force

• Normal force

• Tension force

Which force is responsible for the downward pull on objects near the Earth's surface?

• Magnetic force

• Electric force

• Gravitational force

• Nuclear force

What happens to an object when balanced forces act on it?

• It increases speed

• It remains at rest

• It accelerates

• It changes direction

What is the result of unbalanced forces acting on an object?

• The object accelerates

• The object remains stationary

• The object moves with constant speed

• The object changes shape

How does friction affect the motion of a football?

• It makes the football heavier

• It changes the football's color

• It stops the football

• It speeds up the football

What would happen to a moving object if there were no friction?

• It would slow down gradually

• It would change direction

• It would move indefinitely

• It would stop immediately