Energy Transformations
Burning a candle. (2 steps)
Chemical energy -> heat energy + light energy
A young boy rides his bicycle down the sidewalk
chemical energy ---> mechanical energy
What is the process of saving up or storing energy?
Potential energy.
Energy is defined as _________.
The ability to do cause change or do work!
Using a hot plate to boil water. (2 steps)
Electrical energy -> heat energy
A firecracker explodes in the sky
chemical energy ----> light + heat energy
"You can burn it or you can eat it."
Chemical energy.
the direct transfer of heat between objects that are in direct contact with each other.
conduction
A hungry football player eating a large sandwich to use the food for energy. (2 steps)
Chemical energy -> mechanical energy
Explain the energy transformation when a television is turned on.
Electrical Energy =====> Light and Sound Energy
This type of energy is generated by a force - a push or a pull. Object is moving due to the force.
Mechanical energy.
Transfer of energy by currents through a liquid or a gas.
Convection
Using a solar-powered calculator. (3 steps)
solar energy -> electrical energy ->light energy
As the mass of an object moving at a given speed decreases (ie-50 mph to 25 mphs) its kinetic energy will ______
Decrease
The energy of moving particles.
Heat (thermal) energy
Explain the law of conservation of energy!
Energy cannot be created or destroyed, it can only change forms!
A solar panel on the roof of a building used to heat and cool the building. (2 steps)
solar energy -> electrical energy
Explain the transformation that takes place when you turn a flashlight on. (3 steps)
Chemical (battery)-->Electrical (flow of electrons) --->radiant or thermal (light)
The energy of moving electric charges.
Electrical energy
What is an energy source that is replenished continually? (not an example)
What is a renewable resource