Energy

Sound

Light

Electricity

Nuclear radiation

Create matter

Do work or make things happen

Make objects heavier

Create new atoms

Kinetic store

Chemical store

Gravitational store

Nuclear store

Gravitational store

Thermal store

Magnetic store

Nuclear store

The kinetic store of the wheels

The gravitational potential store of the bike

The thermal store of the brake pads

The chemical store of the cyclist

It uses more total energy

It transfers a higher percentage of input energy into useful output energy

It works faster

It creates more energy than it uses

Energy moving through a metal solid

Energy moving through a liquid via currents

Energy moving through a vacuum as waves

Energy moving through a circuit via electrons

Object X has half the GPE of Object Y.

Object X has the same GPE as Object Y.

Object X has twice the GPE of Object Y.

Object X has four times the GPE of Object Y.

Magnetic store

Electrostatic store

Nuclear store

Chemical store

Chemical store $\rightarrow$ Heating and Radiation pathways

Kinetic store $\rightarrow$ Magnetic pathway

Thermal store $\rightarrow$ Chemical pathway

Electrical store $\rightarrow$ Heating pathway

The thermal energy is destroyed

The thermal energy is dissipated to the surroundings

The tea loses mass

The tea gains cold energy from the air

Some energy is always destroyed

Total energy remains constant

All energy is always useful

Energy can be created by engines

Electrical to Thermal

Electrical to Light

Chemical to Sound

Kinetic to Light

$30\text{ J}$

$100\text{ J}$

$70\text{ J}$

$1000\text{ J}$

A higher speed of energy transfer

A larger amount of energy being transferred

A more dangerous type of energy

A useful energy transfer vs a wasted one

Kinetic energy to elastic potential energy

Elastic potential energy to gravitational potential energy

Chemical energy to kinetic energy

Thermal energy to kinetic energy

Kinetic $\rightarrow$ Electrical $\rightarrow$ Light

Chemical $\rightarrow$ Kinetic $\rightarrow$ Electrical

Light $\rightarrow$ Electrical $\rightarrow$ Kinetic

Electrical $\rightarrow$ Chemical $\rightarrow$ Light

It was destroyed by the floor.

It was converted into thermal energy in the ball and floor, and sound during the impact.

It is still in the ball as potential energy, but the ball is too tired to use it.

It was absorbed by the air as gravitational energy.

The energy has vanished from existence.

The energy has been transformed into non-useful forms like heat and sound.

The energy has been stored as chemical energy in the track.

The energy has turned into extra mass for the marble.

It is destroyed because the meteor no longer exists.

It is transformed into thermal energy, light, and sound in the atmosphere.

It is sent back into space as gravitational waves.

It is stored in the Earth's core.

Finding new ways to burn oil

Using as much energy as possible

Reducing the amount of energy we use

Making energy from gold

Natural gas

Coal

Oil

Wind

Red

Blue

Green

Yellow

Geothermal energy

Wave energy

Nuclear energy

Coal energy

They use more energy to produce the same light.

They are much more efficient, converting more electricity into light rather than heat.

They are made from coal, so they are cheaper.

They only work during the daytime.

It disappears from the universe entirely.

It is converted into matter.

It is usually dissipated into the surroundings as thermal energy (heat).

It is stored back in the fuel for later use.

Solar energy

Wind energy

Tidal energy

Biomass energy

To get rid of toxic chemicals produced by the turbine.

To maintain the pressure in the underground reservoir and ensure a continuous supply.

To cool down the Earth's core so it doesn't explode.

To wash the rocks so they stay hot longer.

A solar water heater on a roof.

Wind energy, which is caused by uneven heating of the atmosphere by the sun.

A calculator with a small photovoltaic cell.

A greenhouse trapping heat for plants.

Using energy as fast as possible to grow the economy.

Meeting the energy needs of the present without compromising the ability of future generations to meet theirs.

Only using energy that comes from the ground.

Making sure that energy is always free for everyone.

Adds extra thermal energy

Prevents heat loss by convection and evaporation

Increases the amount of radiation

Makes the water denser

Rocks getting hot in the sun

Sea breezes near the coast

An iron heating a shirt

Ice forming on a pond

To store extra liquid

To prevent heat transfer by conduction and convection

To make the flask lighter

To allow the liquid to evaporate faster

Convection

Radiation

Conduction

Evaporation

Thermal energy is transferred downwards by convection currents.

Water is a poor conductor of thermal energy.

Water becomes more dense as its temperature increases.

Heat cannot be transferred through liquids by any method.

To make the pipes stronger

To absorb the maximum amount of radiation from the sun

To keep the water from freezing

To reflect the sunlight into the water

Hot water is more viscous

Hot water is less dense

Hot water has more mass

Hot water is under more pressure

Water boils at a lower temperature at high altitudes.

Lakes and oceans help to stabilize the temperature of nearby land.

Ice floats on the surface of liquid water.

Water expands when it freezes.

Hot atoms travel from the hot end to the cold end.

Electromagnetic waves travel through the spaces between atoms.

Energy is passed through collisions of atoms and the drift of free electrons.

The entire rod moves toward the heat source.

It decreases because molecules have more energy to stay in the liquid.

It increases because more molecules have enough kinetic energy to escape the surface.

It stays the same because evaporation only depends on surface area.

It decreases because the density of the liquid increases.