Science

How can you reverse the following change: a paper plane.

How can you reverse a chocolate melting in your pocket?

This force holds us to earth’s surface.

• friction
• mass
• gravity
• tension

A ____________ is a push or a pull on an object.

• chemical
• force
• magnet
• gravity

This is the symbol for a _____?

• an AC current source
• a DC current source
• a battery
• a single cell

Which of these objects would be attracted to a magnet?

• nails
• wood
• paper
• gold

An act of moving something forward or away from you.

• pound

• pull

• push

• stretch

What is the net force acting on the object? (Just write the number)

Which two of these forces act on parachutes?

• Air Resistance

• Gravity

• Thrust

• Kinetic Energy

Friction occurs when two surfaces rub against one another. True or False

• True

• False