Please enable JavaScript.
Coggle requires JavaScript to display documents.
Energy - Coggle Diagram
Energy
What is energy?
Ability to do work
Sources of energy
Food
Fuel
Battery
Different forms of energy
Light energy
A form of energy that allows us to see
Plants with chlorophyll trap light to make food
Light allows us to see
Objects that reflect light
Objects that give off light
Uses of light energy
Projector
Shined images onto a screen, such as in movies
Traffic lights
Differently-coloured lights guide traffic on roads
Runway lights
Help planes land or take off
Camera
'Captures' images on film to make photograhs
Laser
Produces a strong beam of light that can cut through very hard materials ---- also used in sugery
https://youtu.be/AIHcPt91yuA?si=DFltT-D3IdwANhiD&t=35
Heat energy
Heat energy form the sun keeps living things warm so that they can survive
Heat energy can be very useful
cooking food
Warms the surface of the earth
Kills germs
A form of energy that makes things warm or hot
Heat energy can also be produced by rubbing things together
Kinetic energy
Energy that moving objects have
objects at rest
Stationary object
Object that is not moving
No KE
Factors that affect KE
Mass
The amount of particles an object has
more mass more KE
Speed
More speed-> more KE
Electrical energy
A form of energy that can be carried along wires
useful
Easily changed into other forms of energy
HE
rice cooker
water heater
SE
phone
TV
LE
Computer screen
light bulb
Stored in
Batteries
Solar cells
Generated in power stations
Potential energy
Gravitational potential energy
Factors that affect
Height
Position
Mass
Elastic potential energy
Stored in elastic objects
strech
compressed
Chemical potential energy
Examples
food
fuel
battery
Sound energy
Sound energy is a form of energy that we can hear
produced by vibrating objects
https://youtu.be/Q3oItpVa9fs?si=HBHO5ms8v8R42ggy
Sound travels through solid, liquid and gas
Sound does not travel through a vacuum
types of sound
Music
Noise
Use sound energy to communicate
We need energy to stay alive
This energy is from the food we eat
Energy is neither created or destroyed
Energy changes from one form to another