Module 4 Basic Waves

Question 1

What is a Progressive Wave?

Answer 1

A wave that transfers energy from a source through the surroundings by means of oscillations

Question 2

What is a Longitudinal Wave?

Answer 2

A wave where vibrations are parallel to the direction of energy transfer

Question 3

What is a Transverse Wave?

Answer 3

A wave where vibrations are perpendicular to the direction of energy transfer

Question 4

What is Displacement?

Answer 4

The Distance of a point on a wave above or below the undisturbed position

Question 5

What is Amplitude?

Answer 5

The Maximum Displacement of the wave from it’s undisturbed position

Question 6

What is Wavelength?

Answer 6

The Distance between two adjacent points in phase

Question 7

What is Time Period?

Answer 7

The time taken for one complete oscillation

Question 8

What is Frequency?

Answer 8

The number of wavelengths per unit time

Question 9

What are the wave phenomena for Transverse Waves?

Answer 9

Reflection; Refraction; Diffraction; Interference; Polarisation

Question 10

What are the wave phenomena for Longitudinal Waves?

Answer 10

Reflection; Refraction; Diffraction; Interference

Question 11

What is Phase Difference?

Answer 11

The angle by which a wave lags or leads another as an angle

Question 12

What is In Phase?

Answer 12

A phase difference of 0 or 360

Question 13

What is Antiphase?

Answer 13

A phase difference of 180

Question 14

What is Intensity?

Answer 14

The radiant power passing through a surface per unit area