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