Science Review

What always changes when an object moves?

• its speed

• its weight

• its position

If you are at the supermarket and you put many things in your shopping cart, you will apply more_______ to move it.

• gravity

• force

• position

Who discovered gravity?

• Martin Luther King

• Isaac Newton

• Queen Elizabeth

To change the position of something means to change its location

• yes

• no

A force is:

• a videogame

• a position

• a push and a pull

If two objects rub against each other, this will cause friction

• no

• yes

If I'm playing soccer and the grass hasn't being cut, the ball will...

• roll fast

• roll slow

Magnetism is...

• a noncontact force that attracts metal objects that contain iron

• friction

Gravity is...

• an invisible force that pulls you towards the center of the Earth

• a force that you see

Big mass means more gravity

• yes

• no