Topic: Energy Essential Question: How is energy used in the world?

Topic: Energy

Essential Question: How is energy used in the world?

What is Energy?

Energy is the ability to cause change.Everything except feelings or ideas is

made up of either energy or matter.Energy does NOT have mass or take up

space.

What are examples and non examples?

Examples Light energy Heat energy Wind energy Nuclear energy

Non Examples Love Atoms Hatred Air

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What is the Law of Conservation of Energy?

Energy in a system may take on various forms (e.g. kinetic, potential, heat, light).

The law of conservation of energy states that energy may neither be created nor destroyed It just CHANGES forms!

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What is Potential Energy?

Potential Energy is stored in matter, waiting to be released.

What Are Examples?

An arrow being stretched by a bow before it is released

A rock at the top of a hill

Food for our bodies Fuel for our cars

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What is Kinetic Energy?

Kinetic energy is the energy of motion that is released from stored energy.

Examples

Arrow released from bow Object rolling down hill

Muscles moving A car moving

Examples

Potential Energy when

up ready to be released.

Kinetic Energy when it moves up in down by energy from

string

Examples

For the biker the bottom of the hill is a point of potential energy

Going up the hill energy is coming in which means the biker is going through kinetic energy.

Biker waiting on top of the hill to go down is potential energy.Going down the hill energy is going out which means the

biker is going through kinetic energy.For the biker the bottom of the hill is a point of potential

energy

Examples

Potential energy- Low

Kinetic energy- High

Potential energy- High

Kinetic energy- LowPotential energy- Low

Kinetic energy- HighPotential energy- High

Kinetic energy- Low

Potential energy- Low

Kinetic energy- High

Potential energy- High

Kinetic energy- Low

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What Are Other Energies?

The way to remember the other energies is to remember MRS. CENTMechanicalRadiant (light)SoundChemicalElectricalNuclearThermal (heat)

M- Mechanical Energy

Mechanical energy is energy generated through movement.

R- Radiant (light) Energy

Radiant energy is energy from electromagnetic waves.

Sound EnergySound energy is vibrations that moves

through a solid, liquid or gas to our ears.

Chemical EnergyChemical energy is energy released

from a chemical reaction.

Electrical EnergyElectrical energy is energy through

electricity.

Nuclear EnergyNuclear energy is energy released

during a nuclear reaction generally through fusion or fission.

Thermal (Heat) Energy

Energy that changes the temperature of an object.

Finished With Notes

1. Write a 4-5 sentence summary over the Essential Question.

2. Glue notes onto the right hand page.

3. Pick from the following box assignments to complete on the right page: #1, #2 or #5

4. Begin work on vocabulary