Waves

Question 1

Wave

Answer 1

A transfer of energy from one place to another - the particles aren’t moving, the energy is

Question 2

Transverse wave

Answer 2

Particles vibrate at right angles to the wave’s direction of travel/ propagation

Question 3

Longitudinal wave

Answer 3

Particles travel parallel to the wave’s direction of travel / propagation

Question 4

Propagation

Answer 4

Direction of travel - the wave propagates towards xyz

Question 5

Compression

Answer 5

Particles compressed together in a longitudinal wave

Question 6

Rarefaction

Answer 6

Particles spread out in a longitudinal wave

Question 7

Peak/Crest

Answer 7

The top of a transverse wave

Question 8

Trough

Answer 8

The bottom of a transverse wave

Question 9

Wavelength (λ)

Answer 9

The distance from peak to peak, trough to trough, or two middle sections (be careful when choosing this though! Make sure there is the equivalent of 1 peak and 1 trough in between)(the symbol is a lambda)

Question 10

Amplitude

Answer 10

The height of a wave

Question 11

Frequency (Hz)

Answer 11

Number of waves produced each second/how many pass a certain point each second

Question 12

(Time) Period

Answer 12

Time taken for 1 whole wave to occur/pass a point in space

Question 13

How does amplitude affect light?

Answer 13

Brightness

Question 14

How does amplitude affect sound?

Answer 14

Volume

Question 15

How does frequency/wavelength affect light?

Answer 15

Color/where it is on the electromagnetic spectrum

Question 16

How does frequency/wavelength affect sound?

Answer 16

Pitch

Question 17

Wave/wavespeed equation

Answer 17

v=fλ
Wave speed (m/s)=Frequency (Hz)xWavelength (m)

Question 18

\ /
v l ^ Which is the incident ray?
\ l /
._\l/______
//////////////

Answer 18

\
v
\
\

Question 19

\ l /
v l ^ Which is the reflected ray?
\ l /
._\l/______
//////////////

Answer 19

. /
^
/
/

Question 20

\ l /
v l ^ Which line is the normal?
\ l /
._\l/______
//////////////

Answer 20

l
l
l
l

Question 21

\ l /
v l ^ Which line is the mirror?
\ l / Which side of the mirror is reflective?
._\l/______
//////////////

Answer 21

_____________
////////////////
Top side/ side without slashes is reflective, side with slashes is not reflective

Question 22

\ l /
v l ^ Where is the angle of incidence
\ l / measured from?
._\l/______
//////////////

Answer 22

From the incident ray to the normal
\ l
v l
\ l
\l

Question 23

\ l /
v l ^ Which line is the angle of reflection
\ l / measured from?
._\l/______
//////////////

Answer 23

From the reflection ray to the normal
l /
l ^
l /
l/

Question 24

What is the law of reflection for plane mirrors?

Answer 24

The angle of incidence is equal to the angle of reflection

Question 25

object ———–l\
\ l\
\ l\
\ l\