Science physics waves

Question 1

What are waves caused by?

Answer 1

Waves are caused by oscillations

Question 2

What is an oscillation?

Answer 2

An oscillation is a vibration

Question 3

What do waves transfer?

Answer 3

Waves transfer energy

Question 4

What is meant by a longitudinal wave?

Answer 4

A longitudinal wave oscillates parallel to the
direction of energy transfer

Question 5

What is meant by a transverse wave?

Answer 5

A transverse wave oscillates perpendicular to the direction of energy transfer

Question 6

What does wavelength mean?

Answer 6

The distance between two peaks

Question 7

What does time period mean?

Answer 7

Time taken for one complete wave

Question 8

What is frequency measured in?

Answer 8

Hz

Question 9

Which two words can be used to
describe a sound wave?

Answer 9

Sound waves can be described as longitudinal and mechanical

Question 10

Name a device that detects sound.

Answer 10

Microphone

Question 11

What is the range of human hearing?

Answer 11

20Hz – 20000Hz

Question 12

What is an ultrasound wave?

Answer 12

A sound wave that has a frequency above
20 000Hz

Question 13

Name a use of ultrasound.

Answer 13

Medical imaging

Question 14

What does superposition mean?

Answer 14

Superposition is the effect that two waves have on each other when they meet

Question 15

What happens when two waves meet
that are in phase?

Answer 15

They add together and the amplitude increases

Question 16

What happens when two waves meet
that are out of phase?

Answer 16

They cancel each other out