Light Waves Unit Review

1. What word means 'to take in'?

• a. absorb
• b. emit
• c. energy
• d. frequency

2. What does 'amplitude' mean?

• a. the ability to make things move or change
• b. the number of peaks of a wave that pass in a second
• c. the maximum height of a wave
• d. how often or fast something happens

3. What word means 'to give off'?

• a. absorb
• b. emit
• c. energy
• d. rate

4. What is the definition of 'energy'?

• a. the maximum height of a wave
• b. a group of atoms joined together in a particular way
• c. to bounce off without absorbing
• d. the ability to make things move or change

5. What word means 'the number of peaks of a wave that pass in a second'?

• a. frequency
• b. rate
• c. wavelength
• d. spectrum

6. What is the definition of 'light'?

• a. a group of atoms joined together in a particular way
• b. anything that has mass and takes up space
• c. a type of wave that carries energy from one place to another, even through empty space
• d. an object that emits light

7. What word means 'an object that emits light?

• a. spectrum
• b. reflect
• c. light
• d. light source

8. What is the definition of 'matter'?

• a. a group of atoms joined together in a particular way
• b. anything that has mass and takes up space.
• c. a type of wave that carries energy
• d. to pass through

9. What word means 'a group of atoms joined together in a particular way'?

• a. rate
• b. emit
• c. energy
• d. molecule

10. What does 'rate' mean?

• a. how often or fast something happens
• b. to give off
• c. to bounce off without absorbing
• d. to pass through