Forces

_______________ is the amount of matter in an object.

• Mass

• Weight

• Volume

• Force

What is the net force?

• 20 N

• 0 N

• 400 N

• 40 N

A boy applies a pushing force on a ball thrown into the air. What applies a pulling force on the ball at the same time?

• Gravity

• The height of the boy

• Friction

• The mass of the ball

Which word describes a push or pull on an object?

• position

• speed

• mass

• force

What is the force that slows down or eventually stops an object's motion?

• gravity

• push

• motion

• friction

A fan is turned off in the living room. The fan slows down and comes to a rest as the force become ______________

• frictional

• unbalanced

• balanced

• restricted

If two boys are pulling a rope from opposite directions with the same amount of force what will happen?

• The boy in blue will win

• The boy in green will win

• They will not move at all

• Both will fall down

Who discovered gravity?

• Isaac Newton

• Benjamin Franklin

• Albert Einstein

• Aaron Abel

A student places a ball on the ground and kicks it hard. The ball moves along the ground. Which statement is true?

• The kick decreases the weight of the ball.

• The kick decreases the force of gravity acting on the ball.

• The kick applies force which changes the direction of the ball.

• The kick removes friction between the ball and the ground.

Balanced or unbalanced?

• Balanced

• Unbalanced