Energy
Name three types of energy
Sound, Light, Heat etc
Can energy be created or destroyed?
No!
What is a wave?
A wave is energy that spreads out from a source.
What is an electric charge?
An electric charge causes an object to have an electric force
What do you call energy of a moving object?
Kinetic energy
What is a collision?
When objects are forced to move through contact.
What is light? Give two examples of natural light and artificial light.
Light is a form of energy we can see.
Which two charges are there, and which ones repel and attract?
The charges are + and -, and the opposites attract.
What is the energy that has to do with temperature?
Thermal energy
What do you call energy when an object is at rest? Give an example.
Potential Energy.
What is the difference between cold energy particles and hot energy particles?
Hot energy particles move fast, while cold energy particles move slow.
What is a conductor?
A conductor allows electricity to flow through it.
How are speed and energy related?
The more speed something has, the more energy it will have.
Give an example of kinetic energy being transferred.
(Different examples)
What are the three ways Heat flows?
Conduction, Convection and Radiation.
What is the difference between an insulator and a resistor?
An insulator completely blocks electricity, while a resistor weakens it.
Why don't the middle balls move in a newtons cradle? Why do the balls at the end move?
The energy transfers through the middle balls. The balls at the end have nothing to transfer energy to.
Give an example of energy changing forms.
(Different examples)
How is sound produced? Which sounds are easier to hear?
Sounds are produced when particles vibrate. Higher pitch sounds are easier to hear.
(Explanation)