Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
16 Cards in this Set
- Front
- Back
|
Energy |
the ability to do work |
|
|
what’s potential energy? |
energy stored in a spring or elastic bands |
|
|
what’s kinetic energy? |
stored in a body that’s moving (eg. wind, car, truck etc.) |
|
|
What’s heat energy? |
this energy moves things (eg.thermometer) |
|
|
what’s chemical energy? |
it’s stored inside material (eg.battery, our body get it from food and coal, oil, petrol and gas all contain it) |
|
|
Whats sound energy? |
energy die to vibrations of particles (eg. explosions of sound are used in controlled avalanches) |
|
|
What’s electrical energy? |
energy that moves charges (eg. hairdryers and washing machines) |
|
|
What’s magnetic energy? |
energy due to charged particles (eg. large magnets move cars!.) |
|
|
What’s solar energy? |
energy from the sun (eg. store energy in solar cells for heat and electricity + solar energy helps plants grow) |
|
|
What’s nuclear energy? |
energy due to splitting and forming of nuclei of atoms |
|
|
What’s nuclear fission? |
splitting the nuclear of an atom is called fission |
|
|
Benefits of nuclear fission |
No greenhouse gas emissions and lower fuel costs |
|
|
Disadvantages of nuclear fission |
Dangerous disposal of nuclear waste • Danger of accident in power station |
|
|
nuclear fusion - benefits |
supple of fuel and no dangerous radioactive waste |
|
|
nuclear fusion disadvantages |
technology not available yet |
|
|
Conversion of energy principle |
Energy is neither created or destroyed but can be converted from one form to another (eg. chemical energy in a battery changes to sound energy when your mobile phone rings) |
