Forces 3

In air, friction is called ........................

• water resistance

• gravity

• magnetism

• air resistance

Who discovered gravity?

• Alexander Bell

• Einstein

• Arquimedes

• Isaac Newton

If you throw a ball up in the air, what force makes it come down again?

• magnetism

• gravity

• push

• friction

If you kick a ball slowly on grass, what force makes it stop on its own?

• electricity

• magnetism

• gravity

• friction

Would these magnets attract or repel?

• attract

• repel

Would these magnets attract or repel?

• attract

• repel

Which of these forces is a contact force?

• friction

• gravity

• magnetism

• magic

Which of these forces is a non-contact force?

• friction

• pull

• push

• gravity

Is this a push or a pull?

• push

• pull

Is this a push or a pull?

• push

• pull