Energy
The ability to do work
What is energy?
A change or conversion of energy between two objects that run into each other
What is a collision?
When a player gets hot during a basketball game
What is output energy?
Fossils fuels and batteries are example of this kind of source
What are non-renewable sources of energy?
A place where fossil fuels are converted into electricity before it goes to a substation, and then our homes.
Type of energy that refers to heat
What is thermal energy?
How dense an object is or how much it weighs
What is weight?
The food a wrestler eats before a big match
What is input energy?
Sources of energy that can be used over and over again because they occur naturally
What are renewable sources of energy?
Most metals, wire and water are all _______________ of electricity, which can move through these materials.
What are conductors?
The type of energy a bicycle has when it sits at the top of a long steep hill
What is potential energy?
How big an object is
What is mass?
When a racecar moves itself very fast after the engine turns on
What is output energy?
Renewable energy source where the sun's energy can be converted into electricity
What are solar panels?
Materials such as rubber, plastic and string are __________ of electricity, which cannot travel through these materials.
What are insulators?
A kind of circuit where a switch is OFF and the electricity cannot travel in a full circle.
What is an open circuit?
An object's _________ and _________ make it require more energy to lift
What are weight and mass?
When gasoline is added to a truck so it can turn on
What is input energy?
Energy that can be converted into elctricity from the use of turbines and moving water
A lamp, TV, cell phone, and the sun all produce this kind of energy
What is light energy?
Electricity, heat, sound & movement
What are different forms of output energy?
A collision between two objects creates these 2 kinds of output energy
What are heat and sound energy?
The different kinds output energy a lawnmower makes
True or False: A switch is required for a closed circuit to work
What is false? Not all circuits have switches. An example is a cell phone charger
A circular path for electrical energy to flow through including an energy source
What is a closed circuit?