Paper 2 Waves

Question 1

Period

Answer 1

The time taken in seconds for one complete wave to pass a point

Question 2

Peak

Answer 2

Top of the wave

Question 3

Trough

Answer 3

Bottom of the wave

Question 4

Velocity

Answer 4

Velocity = frequency x wavelength (the wave equation)

Question 5

Frequency

Answer 5

The number of cycles per second. Measured in hertz (Hz)

Question 6

Wavelength

Answer 6

the distance between successive crests of a wave, especially points in a sound wave or electromagnetic wave. Always measured in metres

Question 7

Amplitude

Answer 7

Height of the wave

Question 8

Displacement

Answer 8

Distance from the equilibrium

Question 9

Transverse Waves

Answer 9

The oscillation of a transverse wave are perpendicular to the direction in which the wave transfers

Question 10

Longitudinal waves

Answer 10

Oscillations are parallel to the direction of travel

Question 11

Angle of reflection

Answer 11

Angle of incidence

Question 12

Reflection

Answer 12

When a wave bounces off an object. For example light on a mirror

Question 13

Refraction

Answer 13

When a wave enters an object with a higher density, causing it to change direction and slow down.