Light Vocab
A type of energy that people can see
Light
A flashlight is what type of light?
Artificial
True or False: Light is the fastest thing in the universe.
True!
A type of power that helps get work done.
Energy
Sound is a form of?
Energy
A material that lets light through but is clear
a) translucent
b) opaque
Translucent
Give an example of artificial light.
man-made lights, flashlights, lights from phones, TVs
Name an object that light can travel through?
Window, plastic wrap, water
A charged battery has kinetic energy? Yes or no
No, a charged battery has potential energy
A ball rolling down a hill has what type of energy?
Kinetic energy or potential energy?
Kinetic Energy
Objects that completely block light are called
a) opaque
b) transluscent
Opaque
What is a natural source besides the sun that light comes from?
Stars, fires, lightening, fireflies, jellyfish
What type of light source is the sun?
Natural or artificial
Natural
What kind of matter can sound move through besides air (gas)?
Liquids, solids
When sound hits a hard wall and bounces back to your ears, you hear this.
an echo
This is when light bounces off an object.
Reflection
What is the only type of energy that humans can see directly?
Light energy
How long does it take for the light from the sun to reach earth
a) 8 minutes
b) 8 seconds
a) 8 minutes
A roller coaster is at the top of a track, what kind of energy does it have?
Potential Energy
Sound travels faster in air or water?
Water
when light changes direction, as it moves from one material to another
a) redirection
b) refraction
Refraction
How long does it take the sunlight to reach the earth?
8 minutes
Who studied light and prisms?
Isaac Newton or Albert Einstein
Isaac Newton
The loudness or softness of a sound
Volume
Sound Energy is created by these
Vibrations