Force: Friction, Gravity, and Magnetism 2024

Front

What is friction?

Back

Friction is a force that opposes the motion of an object when it is sliding or rolling over a surface.

Front

What is gravity?

Back

Gravity is the force that pulls objects toward each other, such as the force that pulls an apple to the ground.

Front

What is magnetism?

Back

Magnetism is a force that can attract or repel certain materials, like how opposite poles of a magnet attract each other.

Front

What is a force?

Back

A force is any push or pull that can cause an object to move, stop, or change direction.

Front

What happens when two like poles of a magnet are brought together?

Back

They repel each other.

Front

What happens when two opposite poles of a magnet are brought together?

Back

They attract each other.

Front

What is an example of gravity in action?

Back

An apple falling from a tree is an example of gravity.

Front

What is the role of friction when you kick a soccer ball?

Back

Friction slows down the ball and eventually stops it.

Front

What is the difference between static friction and kinetic friction?

Back

Static friction prevents an object from starting to move, while kinetic friction acts on an object that is already moving.

Front

How does gravity affect weight?

Back

Weight is the force of gravity acting on an object; the more mass an object has, the more weight it has due to gravity.