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what do waves transfer ?
Describe the relationship between oscillation and direction of energy transfer in longitudinal and transverse waves
What do electromagnetic waves have in common ?
list the parts of the electromagnetic spectrum from longest wavelength to shortest
how does energy and frequency and wavelength change as you go from radio to gamma rays
are electromagnetic waves, sound waves and mechanical waves longitudinal or transverse
what is the range of wavelengths for electromagnetic waves
draw a diagram to illustrate a longitudinal wave in terms of compressions and rare factions
when does significant diffraction occur ?
when are waves not diffracted
what is the frequency of a wave
what is the amplitude of a wave
what is the wavelength of a wave
describe how radio waves , infrared , visible light can be used for communication
draw a ray diagram of a flower in a plane mirror
what determines pitch of a sound and what determines its loudness
what is the Doppler effect
what is red shift
how does red shift provide evidence that the universe is expanding and support the big bang theory
what does a frequency of 440 Hz mean
what is a virtual image
what information can scientists find out about a galaxy when they measure the red shift the galaxy produces
what properties do radio and microwaves have in common
what are the properties of microwaves that allow them to be used for satellite communications
in hilly areas it may be possible to receive radio signals but not receive terrestrial tv signal - why ?
why was the discovery of CMBR so important to the scientists believing the big bang theory was correct
how is the wave length of CMBR likely to change in future
