Material properties and effects
What property of a material causes it to refract waves?
Density
What is the transfer of energy of the wave to the medium it comes into contact with?
What is absorption?
What does an eclipse show use about light waves?
Travel in straight lines
What is the technique of using reflected sound waves, such as clicks to identify size and position of objects?
Echolocation
What happens to the speed of light waves if it goes from a high density medium to a low density medium?
They speed up. (also bends and wavelength increases)
What is diffraction?
When waves pass through a barrier and spread out evenly
If two transverse waves with an amplitude of 3 m merge together with crest meeting trough, what would be the amplitude of the resulting wave?
0m
What occurs when a light ray hits a surface and bounces off?
What is reflection?
If you hear an echo 4 seconds after making a loud noise, how far away is the object? (Speed of sound in air is 343m per second)
683 meters away.
Sound is made when a source of energy forces the matter to __________
What is vibrate?
What property of light causes light to spread out after leaving a lighthouse?
What is scattering?
What wave behaviour explains why the sky appears blue even though light from the sun contains all colours of the spectrum?
Scattering
What is the name of the wave in which we are able to see light on the electromagnetic spectrum?
What are visible waves?
What do porous, non flat surfaces do to sound?
Absorb
Why is it that when you look into a swimming pool or ocean, objects appear to be closer than they really are?
Refraction
What is transmission of waves?
When a wave passes from one medium to another without changing direction
Give an example of a surface that could cause scattered reflection
Ripples on water.
Other acceptable answers possible
What is the name of the object that light can hit and disperse all the colors of the rainbow?
What is a prism?
What kind of objects cause diffraction?
Gaps or barriers
What kind of wave property do noise cancelling earphones use? (_____ructi___ I_t______ce)
Destructive interference
What word describes a medium that allows some light through, but not all?
Translucent
What technology do ships have to determine the depth of objects?
SONAR