Energy And Change Flashcards
What is energy
Energy is the ability to do work
What is the primary source of energy
The primary source of energy is the sun
What does the term source defines
It means where something comes from
What does renewable and non-renewable means
Renewable means it can be replaced in a short time and non-renewable means it cannot be replaced in a short time.
Give four examples of a renewable and non-renewable energy sources
Renewable energy sources are water, sun, plants, wind
Non-renewable energy sources are uranium, coal, natural gas, petroleum, oil
What is the law of conservation of energy
Energy cannot be created or destroyed, it only changes from one form to another form of energy
Give differences between non-renewable and renewable energy sources
Renewable energy sources can be renewed in a short time but non-renewable energy sources cannot.
Renewable energy sources does not consist of fossil fuels but non-renewable energy sources does.
Give a disadvantage and advantage of renewable and non-renewable energy sources
Renewable energy sources are not harmful to the environment but they are expensive.
Non-renewable energy sources are cheap but they are harmful to the environment.
Give types of fuels of energy
Nuclear fuel
Wind power
Hydro power
Solar power
Biofuels
Give types of energy
Sound energy
Heat energy
Light energy
Kinetic energy
Elastic energy
Gravitational energy
Chemical energy
What does potential means in energy
It means it has potential to do work and it is also called stored energy.
Give an example of kinetic potential energy
Human, bike, car
Give an example of chemical potential energy
Food, fuel, batteries
Give an example of elastic potential energy
Elastic band, catapult, wind up toy
Give an example of gravitational potential energy
A rock on a cliff
A book on the edge of a table
