WAVES

Question 1

all waves carry

Answer 1

energy

Question 2

the height of a wave from the centre to it’s maximum position is known as the

Answer 2

amplitude

Question 3

the amplitude of a wave is a measure of how much ____ it has

Answer 3

energy

Question 4

The number of a waves to pass a point in one second is known as the

Answer 4

frequency

Question 5

frequency is measured in

Answer 5

hertz, Hz

Question 6

The distance travelled by a wave in one second is known as

Answer 6

speed

Question 7

wave speed is measured in

Answer 7

meters per second, ms^-1

Question 8

The distance between two similar points on a wave is known as the

Answer 8

wavelength

Question 9

Wavelength is measured in

Answer 9

metres

Question 10

The time for one wave to pass a point is known as the

Answer 10

period

Question 11

Period is measured in

Answer 11

seconds, s

Question 12

This is an example of a longitudinal wave

Answer 12

sound

Question 13

The type of wave in which the particles vibrate at right angles to the energy

Answer 13

transverse

Question 14

This is an example of a transverse wave

Answer 14

• water waves or any EM wave (radio, microwaves, IR, visible, UV, x-rays, gamma rays)

Question 15

The highest point on a wave is called the

Answer 15

peak or crest

Question 16

the lowest point on a wave is called the

Answer 16

trough

Question 17

ALL EM waves travel at the speed of

Answer 17

light (3x10^8ms^-1)

Question 18

speed is found from the equation

Answer 18

v=d/t

Question 19

frequency is found from the equation

Answer 19

f=N/t

Question 20

The relationship that links frequency and period is

Answer 20

f=1/T OR T-1/f

Question 21

the wave equation is written as

Answer 21

v = f x lambda

Question 22

the louder a sound the ___ it is amplitude

Answer 22

greater

Question 23

The higher the frequency the ___ it is wavelength

Answer 23

smaller

Question 24

This is the bending of a wave around an obstacle or gap

Answer 24

diffraction

Question 25

shorter wavelengths diffract __ than longer wavelengths

Answer 25

less

Question 26

radio waves diffract __ than TV waves

Answer 26

more

Question 27

An ___ is used to detect radio waves and microwaves

Answer 27

aerial

Question 28

A photodiode is used to detect ___ radiation

Answer 28

infrared

Question 29

This can be used to detect visible light, UV, x-rays and gamma rays

Answer 29

photographic film

Question 30

as the frequency of the waves on the EM spectrum increases energy

Answer 30

increases

Question 31

This is defined as the bending of a wave as it moves from one medium to another due to a change in speed

Answer 31

refraction

Question 32

all angles are measured from the

Answer 32

normal

Question 33

when a wave bends from a less dense to a more dense material it

Answer 33

slows down

Question 34

the type of wave in which the particles vibrate in the same direction as the energy

Answer 34

longitudinal