Energy Flashcards
What is energy 122
the ability to do work
What is fossil fuel
Is a substance that is formed underground over millions
of years from decaying of plants
What is a non renewable source
It is a substances that can’t be used over and over
Name the three non renewable source
Coal,Oil and Gas
What is a renewable sources
It is a source what can’t be used up
Name 4 renewable sources
hydropower,Energy from wind,Energy from sunlight and Biofuel
What is Uranium
It is a nuclear fuel
What is biofuel
It is when you burn a substances het releases energy
What is potential
Energy that is stored in a systems.The energy is waiting to be released.
What is kinetic energy
The energy that causes a changes or movement.
What is law conservation
Energy can’t be destroyed nor created,but converted form one form to another .
Name the 4 systems of energy
Mechanical,thermal,electrical and biological systems.
What is conduction
It is a form of heat transfer that occurs between two objects when direct contact
What is convection
is the transfer of heat from one place to another
What is radiation
Is a type of heat transfer that doesn’t need direct contact
Energy can’t
be destroyed, but it can be wasted
Using electricity wisely
Limited supply so we must not waste electricity
What is rotate
To turn on an axis or centre
What angel it the earth tilted
23,5 degrees
What is revolve
To move in a circular path around a centre.
What is orbit
the curved path of a body
What is intensity
The amount (of solar energy) per unit area
What do plants use during photosynthesis
Chlorophyll and carbon dioxide
When the earth orbits the sun
The moon revolves around the earth.
