Types of Energy
This is anything around which you can imagine a boundary.
What is a system?
force times distance
What is the formula to calculate work?
What would you call an apple hanging on a tree and the Earth?
What is apple-Earth system?
work divided by distance
What is force?
A seesaw, scissors, a crowbar, a tire jack
What is a lever?
Energy can only be converted from one form to another; it cannot be destroyed or created.
What is The Law of Conservation of Energy?
This is the sum of the kinetic energy and potential energy with in a system.
What is mechanical energy?
Amount of work done when 4 Newtons of force is used pushing downward onto a 200 kilogram table.
What is no work?
A battery is used to light a lightbulb.
What is chemical potential energy to electrical energy to radiant (light) energy?
For a ball tossed into the air between two people, this is the part when potential energy is increasing and kinetic energy is decreasing.
What is the time when the ball is thrown (going) up into the air?
This is what happens to the mechanical energy in an object-Earth system when the falling object changes from potential energy to kinetic energy.
What is remain constant?
This is the rate at which energy is converted.
What is power?
This is what machines cannot do.
What is Increase speed and force at the same time?
A big rock that has 20,000 Joules of gravitational potential energy when it is 10 meters off the ground has this weight.
What is 204 kg?
? = mgh (This is the equation for which concept?)
What is the equation for gravitational potential energy?
This is what it's called when energy changes from one type to another in a system.
What is transformation of energy?
This is the equation for power (include units).
What is Power (W) = Energy (J)/ time(s)?
The six kinds of simple machines
What are lever, pulley, screw, wedge, inclined plane, wheel & axle?