[physics] waves

Question 1

amplitude

Answer 1

maximum displacement of a point from its rest position

Question 2

unit for amplitude and symbol

Answer 2

m, A

Question 3

wavelength

Answer 3

shortest distance between any 2 points of a wave which are in phase

Question 4

unit for wavelength and symbol

Answer 4

m, 入

Question 5

period

Answer 5

time taken to produce one complete wave

Question 6

symbol and unit for period

Answer 6

T, s

Question 7

frequency

Answer 7

number of complete waves produced per unit time

Question 8

unit and symbol for frequency

Answer 8

Hz, f

Question 9

wave speed

Answer 9

distance travelled by the wave per unit time

Question 10

unit and symbol for wave speed

Answer 10

ms-1, v

Question 11

what are the things in common for waves that are in phase

Answer 11

• direction
• speed
• displacement

Question 12

source dependent things

Answer 12

• amplitude
• wavelength
• period
• frequency

Question 13

medium dependent things

Answer 13

• wavelength
• wave speed

Question 14

wavefront

Answer 14

an imaginary line on a wave that joins all adjacent points that are in phase

Question 15

what does displacement distance graph give you

Answer 15

• wavelength
• amplitude

Question 16

what does displacement time graph give you

Answer 16

• period
• amplitude

Question 17

transverse waves

Answer 17

has a direction of vibration of particles that is perpendicular to the direction of wave travel

Question 18

examples of transverse waves

Answer 18

electromagnetic waves, rope waves

Question 19

longitudinal waves

Answer 19

has a direction of vibration of particles that is parallel to the direction of wave travel

Question 20

examples of longitudinal waves

Answer 20

sound

Question 21

equations to remember

Answer 21

refer to notes