Energy, fossil fuels and renewable energy Flashcards
What is energy measured in?
Joules (Kilojoules)
Energy is the ability….
to do work.
What are 8 main forms of energy?
Kinetic, heat, chemical, electrical, sound, light, gravitational potential and elastic potential energy.
State the Conservation of Energy.
Energy cannot be created nor destroyed but only changed from one form to another.
When can energy be transferred and between what?
It can be transferred when a force moves an object and between its forms.
What is the equation to measure how much energy has been transferred?
Energy Transferred = Force x Distance
Give an example of an energy transfer.
When you burn fuel, energy is transferred from chemical to thermal energy because of its surroundings.
What is conduction?
Conduction is the transfer of heat through objects touching.
What is radiation?
Radiation is when an object gives off heat into its surroundings.
What is convection?
Convection is the transfer of heat through moving air.
What is the difference between renewable and non-renewable energy sources?
A renewable energy source does not run out, which could be solar or wind power, and a non-renewable energy source, which could be fossil fuels, will eventually run out.
What is a fossil fuel? Give an example of one.
A fossil fuel is created from the remains of dead plants and animals, from millions of years ago, buried in the Earth’s crust.
An example of a fossil fuel could be natural gas, crude oil, or coal.
