Sound
This word means back and forth movements.
What is a vibration?
They are a form of energy.
What is light and sound?
Wax paper, frosted glass and tissue paper are examples of what kind of material? Transparent, translucent or opaque
What is translucent?
Why are blueberries blue
they reflect blue light
Why do we see lightning before we hear thunder?
Light travels faster than sound
The unit of sound
What is decibel?
This is the direction that light travels
What is a straight line
Plastic wrap, glass, and water are examples of what kind of material? Transparent, translucent or opaque
What is transparent?
yellow
Explain why we cannot hear sound in a vacuum
no particles!
How loud a sound is can be called....
Volume
It means the bouncing of light from a surface
What is a reflection
Plants, your desk, pencil and YOU are what type of material? Transparent, translucent or opaque
What is opaque?
Why should you wear white in the summer?
It reflects all colors of light
In an experiment, Timmy observed that a full glass of water makes a lower sound when tapped than an empty glass. What property of sound has he observed?
pitch
This word means how high or low a sound is.
What is pitch?
This word describes the bending of light as it moves from one material through another
What is a refraction?
I appear when light is refracted through the waterdrops or raindrops.
What is a rainbow?
What material would absorb the most light?
Shiny black paper, rough black paper, white paper, shiny white paper, metal
Jamie is trying to paint his shed. She wants the roof to reflect the most light as possible. What would be the best option?
Black paint, shiny black paint, metallic paint, green paint
metallic paint
Sound travels through the air as this
What is longitudinal sound waves?
The speed of sound as its transmitted through a solid surface instead of air
What is speeds up?
It is the colour that absorbs all light waves and heat and should not be worn in the summer.
What is black?
Why does a prism show a rainbow?
The light bends as it goes from the air through the glass.
when light travels towards a surface then bounces away in the opposite direction from the same angle, what property of light is this?
refelction