Forces

Front

What is a force?

Back

A force is a push or pull that can change the motion of an object.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object when it comes into contact with another surface.

Front

What happens to a toy car rolling on a rough surface compared to a smooth surface?

Back

The toy car will roll shorter distances on a rough surface due to increased friction.

Front

What is gravity?

Back

Gravity is the force that pulls objects toward the center of the Earth.

Front

What is the effect of mass on the force needed to move an object?

Back

As mass increases, more force is needed to move the object.

Front

What do two north poles of a magnet do when they are brought together?

Back

They repel each other.

Front

What do a north pole and a south pole of a magnet do when they are brought together?

Back

They attract each other.

Front

What is the relationship between mass and braking distance?

Back

More mass requires a longer distance to stop when braking.

Front

What is an inclined plane?

Back

An inclined plane is a flat surface tilted at an angle, used to help lift objects.

Front

How does increasing the angle of an inclined plane affect the force needed to move an object up it?

Back

Increasing the angle reduces the force needed to move the object up the plane.