Waves part 2

Question 1

What is meant by a wavefront?

Answer 1

Is a section through a wave were all particles are at the same level

Question 2

Give the meaning of wavelength (λ)

Answer 2

The distance between 2 successive crests or points (cm or m)

Question 3

Give the meaning of period (T)

Answer 3

The time taken to complete one wave (seconds)

Question 4

Formula for period

Answer 4

T=1÷F

Question 5

Meaning of Amplitude (A)

Answer 5

Max. Displacement of a particle from its rest position (height) above or below the normal line (mm,cm,m)

Question 6

Meaning of frequency (F)

Answer 6

The number of vibrations per second [number of complete wave] (hertz - hz)

Question 7

Formula for frequency

Answer 7

Number of vibrations ÷ time taken

Question 8

Meaning of velocity (v)

Answer 8

Speed with directions (m/s)

Question 9

Meaning of Speed of a wave (c)

Answer 9

The distance moved by one complete wave in one second (m/s)

Question 10

Formula for velocity

Answer 10

λ × f (wavelength × frequency)

Question 11

Formula for speed of wave (c)

Answer 11

λ × f

Question 12

Shallow

Answer 12

Deep waves bend away from normal

Question 13

Deep

Answer 13

Shallow waves bend towards the normal

Question 14

Nb!! For Shallow waves

Answer 14

Shallow waves are slower

Question 15

Nb!! For deep waves

Answer 15

Deep waves are faster