Flashcards
Module 5.1 Energy around you
Cards in this deck (46)
- 1Module 5.1 Energy around youBy Rahma Abdelgadir
- 2What is energy?The ability to make a change happen
- 3What are the forms of energy?1. Kinetic energy
2. Heat energy
3. Light energy
4. Sound Energy
5. Electrical energy - 4What is kinetic energy?The energy of movement
- 5Example of kinetic energyDancing
- 6What is heat energy?A measure of the total kinetic energy possessed by particles in a substance.
- 7Where does heat energy come from?1. Sun
2. Flame
3. chemical reactions
4. Electrical devices - 8What is the result of heat energy?1.Heat warms
2. Burns
3. Melts - 9What is light energy?Energy that is visible
- 10Where does light energy come from?1. Sun
2. Light globes
3. Fires
4. Glow-worms - 11Example of light energyLight
- 12What is sound energy?Energy that travels as vibrating waves and can be heard by our ears as sound.
- 13Where does sound energy come from?1. Voices
2. Cars
3. Power tools - 14Example of sound energyMusical instruments
- 15What is electrical energy?Energy form that causes charged particles to move.
- 16Where is electrical energy produced from?1. Power stations
2. Solar cells
3. Batteries
4. Lighting - 17What does electrical energy power?1. Tv
2. Phone
3. Toaster
4. Microwave - 18Example of electrical energyIpod
- 19What is stored energy?The amount of energy an object has due to its position in space.
- 20What is potential energy?Stored energy possessed by an object
- 21What is photosynthesis?The process in which green plants convert light energy into chemical energy.
- 22What are the forms of potential energy?1. Chemical energy
2. Gravitational potential energy
3. Elastic potential energy
4. Nuclear energy - 23What is gravitational potential energy?Energy stored in an object when its above the ground.
- 24Example of gravitational potential energyWater slide
- 25What is chemical energy?Energy stored in substances
- 26How does chemical energy release?When you,
1. Digest food
2. Cars fuel is burned - 27What contains chemical energy?1. Wood
2. Paper
3. Apples
4. Petrol
5. Batteries - 28What is elastic potential energy?Energy stored in a stretched or squashed spring.
- 29Example of elastic potential energyBungee jumping
- 30What is nuclear energy?Energy form stored inside the tiny atoms that make up matter.
- 31What releases nuclear energy?1. Nuclear power plant
2. Nuclear bomb - 32Example of nuclear energyNuclear power plant
- 33What is energy transfer?The flow of energy from one object to another.
- 34Example of energy transferWhen you kick a ball, the kinetic energy from your foot is transferred to the ball causing it to move.
- 35What is heat energy?A measure of the total kinetic energy possessed by particles in a substance.
- 36What are the ways heat energy is transferred?Though,
1. Conduction
2. Convection
3. Radiation - 37What is conduction?Heat transfer between two objects in contact
- 38Example of conductionHeat transfer from hot soup to you.
- 39What is convection?The transfer of heat in a liquid or gas.
- 40Example of convectionSpreads heat from ducted heating vents though the rooms of a house.
- 41What is radiation?Heat transfer as a wave which can travel though the vacuum of space.
- 42Example of radiationThe heat of the Sun when outside.
- 43What is energy transformation?The conversion of one type of energy into another type of energy.
- 44What is a energy flow diagram?A diagram using arrows that shows the way energy is passed on or changed into other forms.
- 45What is the law of conservation of energy?States that energy can never be created or destroyed. Instead the energy is kept as its converted from one form to another.
- 46Meaning that:1. Energy might be passed on or wasted, but its never lost.
2. If one object wastes energy, then its always gained by another object.