topic 4 waves

Question 1

waves transfer …without transferring …

Answer 1

energy , matter

Question 2

wavelength

Answer 2

distance between the same parts on consecutive waves

Question 3

amplitude

Answer 3

distance from equilibrium line to the maximum displacement

Question 4

frequency

Answer 4

the number of waves that pass a single point per second

Question 5

period

Answer 5

time taken for a single wave to pass a single point

Question 6

wavefront

Answer 6

the plane in which the waves travel (i.e. the direction of the wave)

Question 7

velocity =

Answer 7

frequency x wavelength

Question 8

increase frequency =

Answer 8

velocity increases

Question 9

wavelength increases =

Answer 9

velocity increases

Question 10

period is inversely proportional to ..

Answer 10

frequency

Question 11

smaller period =

Answer 11

higher frequency + greater velocity

Question 12

what are 2 types of waves

Answer 12

transverse + longitudinal

Question 13

transverse waves:

Answer 13

• light or any electromagnetic wave, seismic S waves and water waves
• has peals and troughs
• vibrations are at right angles to the one direction of travel

Question 14

longitudinal waves:

Answer 14

• sound waves and seismic P waves
• has compressions and rarefactions
• vibrations are in the same direction as direction of travel

Question 15

what is a transverse wave

Answer 15

a wave for which the oscillations are perpendicular to the direction of energy transfer

Question 16

what is a longitudinal wave

Answer 16

a wave for which the oscillations are parallel to the directions of energy transfer

Question 17

what are the two parts of a longitudinal wave called

Answer 17

• compressions
• rarefactions

Question 18

what are the two parts of a transverse wave called

Answer 18

• peaks
• troughs

Question 19

what is it meant by a frequency of 200 hz

Answer 19

200 waves pass a given point each second