Waves And Energy

Question 1

True or false

Sometimes longitudinal waves are made into transverse waves

Answer 1

True

Question 2

What is frequency measured in?

Answer 2

Hertz (Hz)

Question 3

What is the hearing range for a human?

Answer 3

20Hz-20kHz/20,000Hz

Question 4

What is the wavelength?

Answer 4

The length of the wave from one crest to the next

Question 5

What is amplitude?

Answer 5

The height of the wave from the middle line to the top of the crest

Question 6

What is refraction?

Answer 6

The change of direction and frequency from deep to shallow water

Question 7

What is diffraction?

Answer 7

Waves travelling through a gap making them curved

Question 8

What is reflection?

Answer 8

Waves bouncing of a wall/object

Question 9

What is the name of the areas of high frequency in a longitudinal waves?

Answer 9

Compression

Question 10

What is the name of the areas of low frequency in a longitudinal waves?

Answer 10

Rare fraction

Question 11

What are the 2 kinds of waves

Answer 11

Transverse and longitudinal

Question 12

What three things can waves do

Answer 12

Diffract, refraction and reflection

Question 13

What is the opposite of a normal wave

Answer 13

A virtual wave

Question 14

What is sound

Answer 14

Vibrations of air particles

Question 15

Red+Green

Answer 15

Yellow

Question 16

Collection of colours

Answer 16

Spectrum

Question 17

When a reaction is exothermic does the temperature go up or down

Answer 17

The temperature goes up

Question 18

When a a reaction is endothermic does the temperature go up or down

Answer 18

The temperature goes down