F4C5: Waves

Question 1

transverse waves

Answer 1

waves in which the vibration of particles in the medium is perpendicular to the direction of propagation of the waves

Question 2

longitudinal waves

Answer 2

waves in which the vibration of particles in the medium is parallel to the direction of propagation of the waves

Question 3

amplitude

Answer 3

maximum displacement from the equilibrium position

Question 4

period

Answer 4

time taken to complete 1 oscillation

Question 5

frequency

Answer 5

number of complete oscillations made in 1 second

Question 6

wavelength

Answer 6

distance between 2 successive points in a phase

Question 7

damping

Answer 7

decrease of amplitude in an oscillating system when the system loses energy to the surroundings

Question 8

resonance

Answer 8

occurs when an oscillating system is driven at its natural frequency by a periodic force

Question 9

refraction of waves

Answer 9

phenomenon where there is a change of direction in the propagation of waves when they move from 1 medium to another due to a change of speed

Question 10

diffraction of waves

Answer 10

phenomenon where waves spread out as they passed through a gap or round an obstacle

Question 11

coherent sources

Answer 11

2 waves with constant phase difference which have the same frequency

Question 12

antinode

Answer 12

point where constructive interference occurs

Question 13

node

Answer 13

point where destructive interference occurs

Question 14

monochromatic light

Answer 14

light with only 1 wavelength or frequency only