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Vocabulary
Energy
Sound Energy
Light Energy
Thermal Energy
100

The ability to do work or cause change.

What is energy?

100
Stored energy of an object due to its position is called _______.
What is potential energy?
100
Define sound energy.
Sound is a wave of vibrations that spreads from its source.
100
Light is a form of electrical and magnetic energy. What is this called?
What is electromagnetic radiation?
100
An objects thermal energy depends in part on its _____
What is mass?
200

An object has _____   _____ because it is moving.

What is kinetic energy?

200
_____________ is the total kinetic and potential energy of atoms in an object.
What is thermal energy?
200
When a sound is made, there are three things it can do. Name them.
What are transmission, reflection and absorption?
200
Light can reflect. What is reflection?
Reflection is the bouncing of light from a surface.
200
In what direction does heat flow? a) from a larger to a smaller object b) from a warmer object to a cooler object c) from a liquid to a solid d) from a solid to a liquid
Heat flows from a warmer object to a cooler object.
300

Heat is transferred in moving liquids and gases by this.

What is convection?

300
Even though one form can change into another form, _____ cannot be made or destroyed.
What is energy?
300
When sound hits a wall at a 90 degree angle, this happens.
What is reflection, or an echo?
300
The bending of light as it passes from one material to another.
What is refraction?
300
What is temperature?
Temperature is a measure of thermal energy. The temperature of an object is related to the average kinetic energy of all the particles of that object.
400

__________ is the transfer of heat from one part of an object to another.

What is conduction?

400
Every time energy changes form, some energy is given off as ______________.
What is unusable heat?
400
This is a measure of a sounds loudness.
What is decibels?
400
A convex lense makes things appear _________. A convex lense is thickest in the middle.
What is larger?
400
The transfer of heat between objects that are in contact.
What is conduction?
500

Xrays, microwaves, light and radio waves are examples of this.

What is electromagnetic radiation?

500
Name some forms of energy.
What is light, heat, sound, electricity or magnetic energy?
500
The measure of a sounds pitch. If the pitch is high, it has a higher __________. The measure of how fast particles are vibrating.
What is frequency?
500
A concave lense is thinner in the middle than the edges. A concave lense makes things look ______
What is smaller?
500
The transfer of heat by a moving liquid or gas. For example cool water sinks under warm water. The warm water rises. This creates a circular current. (Hint we also studied this with ocean currents and magma.)
What is convection?