Waves

Question 1

Wave

Answer 1

A succession of pulses

Question 2

Rest position

Answer 2

The equilibrium position of the medium before a wave/pulse is generated

Question 3

Oscillation

Answer 3

One complete swing or vibration

Question 4

Transverse Pulse/wave

Answer 4

A pulse/waves that moves perpendicular to the direction of the disturbance in a medium

Question 5

Longitudinal pulse/wave

Answer 5

A pulse/wave that moves in the same direction as the disturbance in a medium

Question 6

Wavelength

Answer 6

The distance between two consecutive points on the wave that are in phase

Question 7

Amplitude

Answer 7

The maximum displacement of a particle from its rest position

Question 8

Period

Answer 8

Time taken for a wave to pass a point

Question 9

Frequency

Answer 9

The number of waves passing a point in one second

Question 10

Wave speed

Answer 10

The product of frequency and wavelength of a wave

Question 11

Compression

Answer 11

A point on a medium through which a longitudinal wave is travelling has the particles of the medium closely packed

Question 12

Rarefraction

Answer 12

A point on a medium through which a longitudinal wave is travelling has the particles of the Medium spaced apart

Question 13

Principle of Superposition

Answer 13

The principle of superposition states that when two disturbances occupy the same space at the same time the resulting disturbance is the sum of the two disturbances

Question 14

Photon

Answer 14

A particle without mass, which carries energy and it behaves like both a wave and a particle

Question 15

THE LAWS OF REFLECTION

Answer 15

1.
The incident rat, the reflected rat and the normal all lie in the same plane

2. The angle of incidence is equal to the angle of reflection

Question 16

Critical angle

Answer 16

When refracted ray is at 90 with the normal - then angle of incidence is now called critical angle