Physics online Introduction to Waves for A Level Physics

What does a progressive wave do?

• Transfers energy from one place to another

• Stops energy transfer

• Creates energy

• Stores energy

What shape are the graphs that represent waves?

• Linear

• Parabolic

• Sinusoidal

• Hyperbolic

What letter represents wavelength?

• Lambda

• A

• S

• X

What is the unit of frequency?

• Hertz

• Seconds

• Watts

• Meters

What type of wave is light considered?

• Progressive

• Longitudinal

• Transverse

• Standing

What phenomenon only occurs with transverse waves?

• Reflection

• Refraction

• Polarization

• Diffraction

What are the points called where there is no movement in a standing wave?

• Troughs

• Peaks

• Nodes

• Antinodes

What does the refractive index indicate?

• The amplitude of the wave

• The frequency of the wave

• How much a wave slows down in a medium

• The speed of light in vacuum

What is the result of diffraction?

• The wave changes color

• The wave speeds up

• The wave stops

• The wave spreads out

What can a diffraction grating be used to measure?

• The energy of light

• The speed of light

• The wavelength of light

• The amplitude of light