Vocabulary
how high or low the sound is
What is pitch?
We can't see without it. It comes from the sun. This energy can be collected and used to make electricity.
What is light energy?
All sounds begin when something _________.
Vibrates
Sunlight is a mixture of ________ colors.
many
What is an example of a conductor?
Metal pot
light can be taken in when it hits an object
What is absorb?
Any item that is plugged into an electrical outlet that runs on electrical energy. (computer, microwave, etc.)
What is electrical energy?
An object's ________ can affect pitch.
An object ________ all light that strikes it looks ______.
absorbs, black
The ability to work is called?
Energy
a piece of glass that refracts light
What is a prism?
A stove, candle, and match that give off this type of energy.
What is heat energy?
The _________ the object the faster it vibrates and the ________ its pitch.
smaller, higher
An object that _______ all light that strikes it looks ______.
reflects, white
The energy that makes particles move is called.
Thermal energy
when light hits an object, it bounces off of it
What is reflection?
Metal pots are an example of this. Heat flows through them easily.
What is a conductor?
The _______ an object, it vibrates slower and the _____ its pitch.
larger, lower
What is an example of an insulator?
Sweater
to move back and forth quickly
An example of this would be a sweater. Heat does not flow through easily.
What is an insulator?
high pitch-squeaky door
low pitch croaking bullfrog
What happens when you see a red apple?
If white light strikes a red apple, all the colors except for red are absorbed by the leaf and only red bounces off.