SP4 - Waves

Question 1

What are the two types of waves?

Answer 1

Transverse and longitudinal

Question 2

What is the definition of a transverse wave?

Answer 2

A type of wave that moves upwards and downwards parallel to the x-axis. Transverse waves only move forward

Question 3

What is the definition of a longitudinal wave?

Answer 3

A type of mechanical wave that moves from side to side on the x-axis. Longitudinal waves transfer energy with the help of a medium

Question 4

What does the lambda symbol represent? (λ)

Answer 4

Wavelength

Question 5

What is the equation to calculate wave speed?

Answer 5

v = fλ
(v = speed
f = frequency
λ = wave length)

Question 6

What is the definition of refraction?

Answer 6

Refraction is the bending of light through a medium

Question 7

What do you use to measure the angle of refraction?

Answer 7

The angle of the incident ray

Question 8

How do you calculate the refractive index?

Answer 8

Calculate the sine of angle i (incidence) and angle r (refraction), then divide sin i by sin r.

Question 9

What is the definition of a refractive index?

Answer 9

The ratio of the speed of light in a vacuum compared to the speed of light in a medium

Question 10

List the steps of refraction

Answer 10

Light enters the medium, the light bends inside said medium, the light then leaves at a different angle (reflection angle)