Waves Revision

In a water wave the medium ​ (a)   up and down, while the wave pattern travels along ​ (b)   . Waves like these are called ​ (c)   waves. The wavelength is the ​ (d)   between two peaks or two troughs. The ​ (e)   is how far the peak moves from the equilibrium position.

• oscillates
• travels
• horizontally
• vertically
• transverse
• longitudinal
• distance
• amplitude
• time
• volume

Label the parts of a wave

a

b

c

d

Equilibrium

Amplitude

Peak

Trough

What is the amplitude of a wave?

• Speed of the wave
• Frequency of the wave
• Wavelength of the wave
• Maximum movement of a particle from its equilibrium position

How do you measure wavelength?

• By counting the number of peaks in a wave
• By measuring the amplitude of a wave
• By measuring the distance between one peak and another.

• By measuring the distance between one trough and another.

What is the frequency of a wave?

• The height of the wave

• The number of waves that pass a point in one second

• The distance between two consecutive crests

• The speed of the wave

What determines the speed of a wave?

• Its amplitude

• Its frequency

• The medium through which it travels

• Its wavelength

What is the law or reflection?

• The law of reflection states that light bends at a certain angle.
• The law of reflection is that the angle of incidence is greater than the angle of reflection.
• The law of reflection only applies to sound waves.
• The law of reflection is that the angle of incidence is equal to the angle of reflection.

What is refraction?

• Refraction is the absorption of light by a medium
• Refraction is the bending of light as it passes from one medium to another due to a change in speed.
• Refraction is the reflection of light off a surface
• Refraction is the scattering of light in all directions

What is a medium?

• A medium is a size between small and large.
• A medium is a device used for cooking food.
• A medium is a type of psychic who communicates with the dead.
• A medium is a A material that carries a wave.

What is diffraction?

• Diffraction is the reflection of waves off a surface.
• Diffraction is the absorption of waves by a material.
• Diffraction is the bending of waves around obstacles and openings.
• Diffraction is the amplification of waves through a medium.