Waves

Question 1

What do all waves do?

Answer 1

Transfer energy

Question 2

Name the two different types of waves

Answer 2

Transverse and longitudinal

Question 3

What is the wave that the particles of the medium move in the same direction as the wave energy transfer

Answer 3

Longitudinal

Question 4

What is the type of waves that the particles of the medium travel at A right angle to the direction of the wave energy transfer

Answer 4

Transverse

Question 5

What is the name of the wave that only emits sound waves

Answer 5

Longitudinal

Question 6

What is the speed of sound in air

Answer 6

340 m/s

Question 7

What is the speed of light in air

Answer 7

300,000,000 or 3x10 8 m/s

Question 8

Give an example of light being faster than sound

Answer 8

Thunder I lightning, fireworks.

Question 9

What is the range of sound waves frequency that humans can hear

Answer 9

20-20,000 Hz

Question 10

What are sounds with A frequency above 20,000 Hz called

Answer 10

Ultrasounds

Question 11

What can the reflection of waves including sound and ultrasound be used for.

Answer 11

Detect the depth of the sea bed detect cracks in metal objects.

Question 12

What is the definition of frequency and equation

Answer 12

Number of waves to pass a point in one second
f= N/t

Question 13

What is the period of a wave definition

Answer 13

Is the time takes for one wave to pass a point

Question 14

What does the electromagnetic spectrum do

Answer 14

Transfer energy, transverse waves, all diffract travel at 3x10 8

Question 15

What is the order of the electromagnetic spectrum

Answer 15

Radio, TV, microwaves, infrared radiation,visible light, ultraviolet, X-rays, gamma radiation

Question 16

If a wave has a low frequency long wavelength and low energy what part of the electromagnetic spectrum will it be on

Answer 16

Higher end

Question 17

If a wave has a high frequency shortwavelength and high energy what end will it be on

Answer 17

Lower end

Question 18

What detects radio and TV waves

Answer 18

An aerial

Question 19

What are the waves that are detected using photodiodes.

Answer 19

Infrared, visible light, ultraviolet

Question 20

What are the waves that are detected using photographic film

Answer 20

Visible light, ultraviolet, X-rays, and gamma Rays.

Question 21

What is refraction of light

Answer 21

When light passes from one medium to another causing a change in speed directionand wavelength

Question 22

What happens when light goest from a less dense medium to A more dense medium

Answer 22

Refracts toward the normal

Question 23

What happens to light as it goes from a more dense medium to a less dense medium

Answer 23

Refracts away from the normal