Which one of the following pairs of angles correctly identifies the angle of incidence and the angle of refraction?

Question 1

WAVES

Answer 2

Waves transfer energy from one place to another without transferring matter. Wave motion can be shown by the vibrations of a spring or by water waves.

Answer 3

A transverse wave is a type of wave that causes the particles in the medium to vibrate at right angles to the direction of the wave’s motion.

E.g. A cork in water.
E.g. Coils of a spring.
They both move up and down as the wave passes

Question 4

What is not transferred from one place to another by waves?

Answer 4

Matter

Answer 5

A longitudinal wave causes a medium’s particles to vibrate in the same direction as the wave’s motion.

E.g. Sound waves are longitudinal waves.

Question 6

What is the name given to the wave that causes the particles in a medium to vibrate at right angles to the direction of the wave’s motion?

Answer 6

Transverse wave

Question 7

The speed of waves can be calculated using the following equation:

Answer 7

Wave speed (m/s) = frequency (Hz) × wavelength (m)
v = fλ

Question 8

What is the name given to the wave that causes a medium’s particles to vibrate in the same direction as the wave’s motion?

Answer 8

Longitudinal wave

Question 9

Wave frequency is calculated using the following equation:

Answer 9

Wave frequency (Hz) = number of oscillations ÷ time taken (s)
f = n ÷ t