Pushes and Pulls

Front

What is a force?

Back

A force is a push or pull that can cause an object to move, change its speed, or change its direction.

Front

What are the two main types of forces?

Back

The two main types of forces are contact forces (like friction and tension) and non-contact forces (like gravity and magnetic forces).

Front

What is an example of a strong force?

Back

An example of a strong force is the force exerted by a person when throwing a heavy object.

Front

What is an example of a weak force?

Back

An example of a weak force is the force exerted by a person when blowing a feather.

Front

How does mass affect the amount of force needed to move an object?

Back

The greater the mass of an object, the more force is required to move it.

Front

What is the relationship between force and motion?

Back

Force is necessary to change the motion of an object; without force, an object at rest stays at rest, and an object in motion continues in motion.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object, acting parallel to the surfaces in contact.

Front

What is the difference between pushing and pulling?

Back

Pushing is applying force away from oneself, while pulling is applying force towards oneself.

Front

What is an example of an object that requires a strong force to move?

Back

A house requires a strong force to move due to its large mass.

Front

What is an example of an object that requires a weak force to move?

Back

A feather requires a weak force to move because of its light mass.