Energy
What is the definition of Energy?
The ability to do work.
What did Albert Einstein tie to a string to student energy?
A key
When an apple is sitting on a table what type of energy is this demonstrating?
Potential Energy
What type of Energy do travels on little wires around our house?
Electrical
What type of energy is always Kinetic Energy?
Light
What is the word that tries to balance energy?
Equilibrium
What is the greatest source of Energy?
the Sun
What did Albert Einstein discover when he compared lightening and static electricity?
They are the same thing.
Define Kinetic Energy.
Energy in Motion
What type of energy is demonstrated when we rub our hands together?
Thermal Energy
When thermal energy is increasing are the molecules moving faster or slower?
Faster - It is causing energy to heat up
Heat transfers in two ways Conduction and Convection. Which way is demonstrated when the warmer parts move up and the colder parts move down?
Convection
What was the first Energy discovered/used by man?
Fire
In a lightening storm is it better to sit under a tree or in a car?
In a car because the rubber tires will repel the electricity.
Define Potential Energy
Energy that exists but is not being used.
What type of energy does bats use to stop them from flying into walls?
Echolocation
In the nucleous of an atom (protons-center) what types of charges are present, negative or positive?
Positive
Define the word conductor.
A conductor is something that allows heat or electricity to pass through them easily. Such as metal or stone.
How does the sun affect plants to gain energy?
Photosynthesis
What is Conservation of Energy?
Energy cannot be created or destroyed but can change from one form to another.
What kind of energy is demonstrated as a bowling ball hits the pins?
Kinetic Energy
What type of energy is the fastest type of energy?
Light
What are the particles called moving on the outside of the atom (valence) protons or neutrons.
neutrons that are negative
When we see white, with our eyes, are all the colors being reflected or absorped?
reflected
Explain how grass can become energy for people?
The grass is eaten by cows and people then eat the cows.
What is kind of energy is demonstrated in light?
Light Kinetic Energy
What is one way you can demonstrate how Potential Energy becomes Kinetic Energy?
Answer varies: ex Stand still and run in place
What are the ten forms of energy?
Mechanical, solar, light, sound, gravitational, electrical, elastic, thermal, chemical, magnetic
What type of energy must be both Potential and Kinetic?
Mechanical energy
What do we compare sound waves to that show us vibrations of sound?
Slinky