Lesson 10 : Electricity review & energy types

Lesson 10: Electricity review & energy typesObjectives:1. Review circuits, magnetism, electricity2. Types energy 3. Transfer between types of energy

Review• Draw examples of series and parallel circuits. Label all symbols• What are the symbols for amps and voltage? How are they

measured? What do they mean? How do they change in each type of circuit?

• What do magnets have around them? How do we know this? What does it look like?

• How do you make a magnet? • Why did some of the electromagnets over heat? How could you

prevent this? Why do you need to use insulated wire? A iron nail instead of steel?

• Which metals are good conductors? Why? What is resistance? How does it affect a circuit?

10.1a What is energy?

Energy makes things happen!

KINETIC ENERGY ELECTRICAL ENERGY

SOUND ENERGY LIGHT ENERGY

ENERGY IN ACTION

STORED ENERGY

GRAVITATIONAL POTENTIAL ENERGY CHEMICAL ENERGY

ELASTIC ENERGYHEAT/ THERMAL

ENERGY

10.1a What is energy?

All living things need energy to...

live

reproduce

grow

10.1a What is energy?

All living things get their energy from food.Food has a store of energy called chemical energy.

Fuels like coal, charcoal, gas, oil, diesel and petrol also have stores of chemical energy.

10.1a What is energy?

Energy is needed foreverything we do

1. Make a table in your notebook:

2. Fill in the table as you move through the centres.

Activity Energy form in Energy form out (the energy we use)

Any other energy?

Burning candle Chemical (in the wax)

Light (in the flame) Heat (in the flame)

10.1a Traffic light cards

We can use energy even if we are asleep

YesBasic body functions (breathing, heartpumping) use energy

10.1a Traffic light cards

All energy is stored energy

NoChemical energy is often a store butkinetic, heat and light energy arealmost never stores of energy

10.1a Traffic light cards

All living things need energy

YesAll living things need energy

10.1a Traffic light cards

Stored energy is changed into only one form

NoOur candle used chemical (stored) energyand produced heat and light energy

10.1a Traffic light cards

Is electricity a form of energy?

YesElectricity has electrical energy which moves energy from one place (e.g. a battery)to another (e.g. a torch bulb)