WAVES

Question 1

What is tranverse?

Answer 1

Tranverse wave is when the vibration happens 90 degrees of the oscillation

Question 2

What is longitudinal

Answer 2

Longitudinal wave is when the vibration has compression and rare factions

Question 3

Which state of matter does sound travel faster in?

Answer 3

Solid. Because the atoms are closer together meaning that they can vibrate very easily because they are close to one another

Question 4

What is refraction?

Answer 4

Refraction is when light passes through different states of matter at different speeds creating a distorted image

Question 5

Which word is used to describe the distance between any point on one wave and the equivalent point on the next wave?

Answer 5

Wavelength

Question 6

Visible light is an example of a wave. Is visible light a transverse or a longitudinal wave?

Answer 6

Transverse

Question 7

True or false? Light travels in straight lines.

Answer 7

True

Question 8

The law of reflection states that the angles of incidence and reflection are… what?

Answer 8

Equal

Question 9

What name is commonly given to the reflection of a sound?

Answer 9

Echo. When we hear the sound again

Question 10

Which word describes the maximum a point moves from its rest position when a wave passes?

Answer 10

Amplitude

Question 11

Are sound waves transverse or longitudinal?

Answer 11

Longitudinal

Question 12

Light bends as it enters a glass block. Which type of wave behaviour is this?

Answer 12

Refraction

Question 13

What name is given to sections of longitudinal waves where the medium is “bunched up”?

Answer 13

Compressions

Question 14

Can sound travel through a vacuum?

Answer 14

No. Sound need air/solid/liquid to transfer sound to each other

Question 15

Above what frequency is a sound wave considered to be ultrasound?

Answer 15

20000hz

Question 16

Sounds are made when objects __________ in air. What one word completes the sentence?

Answer 16

Vibrate in the air

Question 17

What name is given to sections of longitudinal waves where the medium is “stretched out”?

Answer 17

Rarefactions

Question 18

The number of waves passing a point in a second is known as the… what?

Answer 18

Frequency

Question 19

At night, a bat emits a series of sounds which bounce off objects and then return to the bat. The bat uses these to work out the location of objects, and so can avoid them. What is the name of this method used by the bat?

Answer 19

Echolcation

Question 20

What is the name of when the light enters and reflects of an object?

Answer 20

Incident/Incident Ray

Question 21

Anne is pregnant and goes to hospital for a scan. What method would you suggest should be used to view the foetus?

Answer 21

Ultrasound scan

Question 22

What do you call the light ray when it has bounced of a surface?

Answer 22

Relfected

Question 23

What do call how many waves there are?

Answer 23

Frequency of a wave

Question 24

What do you call the distance between a wave and other wave?

Answer 24

Wavelength

Question 25

What do you call the 'imaginary' line between the incident and reflected ray?

Answer 25

Normal

Question 26

When drawing a diagram, what direction do you draw arrows on the light ray?

Answer 26

The direction the oscillation is moving towards