4th Grade Forces

Front

What happens when the same poles of two magnets face each other?

Back

They repel each other.

Front

What force pulls objects back to Earth?

Back

Gravity.

Front

Which object experiences the highest gravitational force when dropped?

Back

The object with the largest mass.

Front

If an object is not moving, what can we say about the forces acting on it?

Back

The forces are balanced.

Front

What is a spring scale used for?

Back

To measure the weight of an object by the force of gravity acting on it.

Front

What are the two types of forces?

Back

Contact forces and non-contact forces.

Front

What is friction?

Back

A force that opposes the motion of an object.

Front

What is the effect of gravity on objects?

Back

It pulls objects towards the center of the Earth.

Front

What is a balanced force?

Back

Forces that are equal in size and opposite in direction, resulting in no movement.

Front

What is an unbalanced force?

Back

Forces that are not equal, causing an object to move.