Explain the geocentric model
Explain the heliocentric model
How was the heliocentric model proved?
Explain how the heliocentric model is different to today's model
Definition of wavelength
definition of frequency
definition of amplitude
what do waves transfer
describe a transverse wave
describe a longitudinal wave
name 2 examples of transverse waves
name 2 examples of longitudinal waves
name the triangle that links speed, frequency and wavelength
how do you remember the speed, wavelength, frequency triangle?
what is frequency measured in?
what is wavelength (lambda) measured in?
what is speed measured in?
what is the law of reflection?
sound waves travel____in ______?
what happens when a wave crosses a boundary between 2 substances?
what is a real image?
what is a virtual image?
what is a converging lens used for?
what does a converging lens do?
EM waves travel_____in ______?
define the focal length
explain how a refracting telescope works
explain how a reflecting telescope works
explain what happens as you go from left to right on the EM spectrum
how do you remember the order of the EM waves?
who discovered Infrared?
who discovered UV?
what do refracting telescopes use?
what do reflecting telescopes use?
explain how infrared was discovered
explain how UV was discovered