Explain why refraction happens
When a wave enters a new medium,
It changes speed
State the name for a material through which a wave travels
Medium
State the name given to a repeated back and forth motion or a repeated increase and decrease
Oscillation
Define longitudinal wave
A wave where the oscillation is parallel to the direction of energy transfer
State what oscillates in electromagnetic waves
The electromagnetic field
Define refraction
When a wave changes direction when it enters a new medium
Standard units for frequency
Hertz ( Hz )
Name the 7 groups of the electromagnetic spectrum
Radio
Microwave
Infrared
Visible
Ultraviolet
X ray
Gamma rays
Define wavelength
The distance from one point on a wave to the same point on the next wave
What do waves transfer from one place to another?
Energy
Define transverse wave
A wave where the oscillation is perpendicular to the direction of the energy transfer
What do waves not transfer from one place to another?
Particles/ matter
Diagrams
In photos
