Online Quiz

Light travels in a ___________ path

• straight

• wavy

Light travels in a ___________ path

• straight

• wavy

1. Light and sound is a form of ______________.

• energy
• volume
• light
• matter

3. Sound is caused by ________________.

• vibrations
• instruments
• force
• light waves

9. What is light?

• A form of energy
• A form of sound
• A form of gas
• A form of liquids

11. What is Earth's main source of light?

• light bulbs
• the sun
• the moon
• candles

17, TRUE OR FALSE: The speed of light is much faster than the speed of sound in air.

• True
• False

20. What type of medium does sound travel the fastest?

• Solid
• Liquid
• Gas

19. What type of medium does light travel the fastest?

• Solid
• Liquid
• Gas

Sound can travel through

• a) Air

• b) vacuum

• c) solids

• d) both a) and c)