SP4 - Waves Flashcards Preview

HCHS Year 9 Triple Science > SP4 - Waves > Flashcards

Flashcards in SP4 - Waves Deck (10):

What are the two types of waves?

Transverse and longitudinal


What is the definition of a transverse wave?

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


What is the definition of a longitudinal wave?

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


What does the lambda symbol represent? (λ)



What is the equation to calculate wave speed?

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


What is the definition of refraction?

Refraction is the bending of light through a medium


What do you use to measure the angle of refraction?

The angle of the incident ray


How do you calculate the refractive index?

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


What is the definition of a refractive index?

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


List the steps of refraction

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