P1.2.2 - Sound and Energy Transfer

Question 1

Which is faster? Sound or light?

Answer 1

Light

Question 2

What is a vacuum?

Answer 2

Empty space (no particles at all)

Question 3

Does sound eventually disappear?

Answer 3

No it spreads out as it moves away from the source.

Question 4

Which medium does sound travel through the slowest?

Answer 4

Air, because the particles are furthest apart.

Question 5

What is meant by a medium?

Answer 5

A solid/liquid/gas that sound travels through

Question 6

Sound is a type of…

Answer 6

energy

Question 7

How is sound able to travel through a medium?

Answer 7

Particles oscillate into nearby particles and pass the oscillations along.

Question 8

How is sound generated?

Answer 8

By vibrations (oscillations)

Question 9

Thunder and lightening happen at the same time. Why do we see the lightning before we hear the thunder?

Answer 9

The light from the lightning travels faster than the sound of thunder.

Question 10

Sound requires a m________ to travel through

Answer 10

medium

Question 11

Which medium is sound able to travel fastest through?

Answer 11

Solids because the particles are closest together

Question 12

What is the speed of sound in air?

Answer 12

340 m/s