MAP review Part 3

What is the term for a straight line of light that originates at any point?

• Line

• Ray

• Laser

At which speed does light travel? (in MPH)

• 20,000,000

• 879,000,000

• 670,000,000

• 324,000,000,000

 True or False: Light travels in totally empty spaces, also known as vacuums.

• True

• False

Do opaque, translucent, or transparent objects let the most light pass through?

• Opaque

• Translucent

• Transparent

What is the term for tiny particles light is made of? 

What are boiling, melting and freezing examples of? (chemical or physical change)

• Chemical Change

• Physical Change

True or False: Atoms rearrange by breaking bonds with each other.

• True

• False

What are burning, rusting, and rotting examples of? (chemical or physical change)

• Chemical Change

• Physical Change

Do atoms change speed when physical changes happen?

• Yes

• No

When chemical changes happen, what is going on atomically?

• The atoms are breaking bonds and rearranging.

• The atoms are getting a divorce.

• The atoms pack tightly together and stay perfectly still.

• The atoms just disappear and new ones come back