Sound
This word means back and forth movements.
A vibration
They are a form of energy.
Light and Sound
Wax paper, frosted glass and tissue paper are examples of what kind of material? Transparent, translucent or opaque
Translucent
Candles, lamps, flashlight are...
The unit of sound
A decibel
This is the direction that light travels
Straight line
Plastic wrap, glass, and water are examples of what kind of material? Transparent, translucent or opaque
Transparent
Glow worms, fire flies are an example of this...
These go in your ears and prevent sound from getting through.
Earplugs
It means the bouncing of light from a surface
Reflection
Plants, your desk, pencil and YOU are what type of material? Transparent, translucent or opaque
Opaque
Does the moon emit or reflect light?
Reflect
This word means how high or low a sound is.
Pitch
This word describes the bending of light as it moves from one material through another
I appear when light is refracted through the waterdrops or raindrops.
Rainbow
What does amplitude mean in terms of sound?
The distance from the top (peak) of the sound wave, to the bottom (trough).
Sound travels through the air as this
Sound waves
Name 2 objects that both emit and reflect light
Example: Flashlight, TV screen, etc
It is the colour that absorbs all light waves and heat and should not be worn in the summer.
Black
What is sound frequency?
The number of sound vibrations made per second