Practice Quiz 2 Sound, Light and Electricity

What does sound start with?

• a force

• a pull

• a vibration

• a push

When someone plays a guitar, how does the sound reach your ears?

• through sound energy

• through thermal energy

• through echoes

• through potential energy

What is the best description of how sound travels?

• in a straight path to your ear

• outward in all directions

• back and forth from the source

• upward from the source

Why are sounds not heard in space?

• space is too cold for sound to travel

• there is too much matter in space

• there is very few or no particles in space

• energy cannot travel in space

How does light travel?

• zigzag

• curve

• straight line

Which sentence best explain how the light keeps the fish warm?

• The light transfers energy to the water

• The light makes it easier to see in the tank

• The light helps keep the tank clean for the fish

• The light's energy provides food for plants in the tank.

What can travel in space

• sound energy

• light energy

Which picture shows a solar cell?

• 
• 
• 
• 

What type of circuit is shown in the picture?

• series

• parallel

• short

What type of circuit is shown in the picture?

• series

• parallel

• short