Properties of a Wave
What is the bottom point of a wave called?
a trough
Waves are a transfer of
energy
A line of energy that continues in one direction until it hits an object
A ray
This part of the eye can let more or less light in.
pupil
an object that lets some light through, but not all light
translucent
a crest
Why is it silent in outer space?
Sound needs a medium to travel. In outer space there is no air to carry the sound.
This is when a light ray bounces off a surface and moves in a new direction
reflect
This part of the eye bends and focuses light into images you can see
lens
An object that lets almost all light pass through and you can see through it clearly
transparent
The distance between similar points on a wave is called...
wavelength
How can you use waves to send a message across a room?
Using sound waves or light waves
Light rays bend when they enter a new medium
refract
The part of the eye that receives the image from the lens
the retina
Matter that lets no light through
opaque
What is the greatest height of a wave from its resting position?
amplitude
A scientist compared 2 waves, one wave had more repititions per second than the other wave. How would you describe differences between the waves?
The waves have different frequencies
When light hits an object but is not reflected or bend it is...
absorbed
The part of a device that takes in the radio waves
antenna
Why are you not able to see objects in the dark?
Objects cannot be seen unless light reflects off them and into your eye. In the dark, there is not enough light.
The number of wave repetitions in a certain amount of time...
frequency
Light waves appear as different colors, which are determined by their...
wavelengths
Why does black clothing get warmer than white clothing in sunlight?
The black clothing absorbs more sunlight
This converts the radio waves into a usable message
receiver
The part of a device that sends out radio signals
transmitter