Waves

Question 1

What are waves

Answer 1

Waves, is the transfer of energy without transferring matter across a medium of space.

Question 2

What is amplitude

Answer 2

Amplitude is the height of a crest of a wave, measured from the undisturbed position of the medium carrying the wave.

Question 3

Wave front

Answer 3

A line that connects all the peaks of a wave in two dimension. Particle along the wavefront vibrate in unisokn and in the same phase of disturbance

Question 4

2 types of waves hat are they

Answer 4

Transverse wave and longtitudenal wave

Question 5

Wave speed

Answer 5

Distance travelled by a body along a wave per unit time and can be calculated as the product of frequency and wavelength

Question 6

Transverse wave

Answer 6

It is a wave by which particles are vibrating at right angle to the direction of energy transfer.

Eg. Water wave from the surface, Seismic waves due to earthquake

Question 7

Longitudinal wave

Answer 7

Longitudinal wave is a wave by which the particles are vibrating parallel to the direction of energy transfer or wave traveling.

Eg. Soundwave, ultrasonic wave, seismic primary waves.

Question 8

Reflection of wave

Answer 8

When a wave strikes a surface, its direction will change such that angle of incident is equal to angle of reflection

Question 9

Reflection of wave due to a change of speed

Answer 9

When light waves travels from air to glass, the speed of wave decreases to retraction across whereby the angle of incident is greater than the angle of refraction the light waves bend torwards the normal

Question 10

Diffraction, what happens if the gap is small and big and its wavelength

Answer 10

The smaller the gap, the greater the diffraction.

The larger the gap the less its diffraction

The longer its wavelength the greater its diffraction

The shorter its wavelength the less its diffraction