22/09/2020

Learning OutcomesWhat: To correctly identify energy types

To give examples of energy changes

How: through observations and the use of key words

Why: to understand the importance of energy in the world that we live in

Learning OutcomesMEA 1-3: To be able to identify energy types

MEA 4-5: Describe energy transfer and recall the law of energy conservation

MEA 6-7: Recall and explain the law of energy conservation.

MEA 8/9 : Identify useful and wasted energy in a given situation.

TYPES OF ENERGYBelow are the different types of energy, but all the vowels have been removed! Can you discover what each word is meant to be?

S _ _ ND

M_GN_T_C

_ T_ M _ C

CH_M_C_L

K_N_T_C

H_ _ T (Thermal)

_ L_CTR_C_L

L_GHT

GR_V_T_T_ _N_L P_T_NT_ _L

_L_ST_C P_T_NT_ _L

Types of Energy - Light

Types of Energy - Sound

Types of Energy Thermal (heat)

Types of Energy - Chemical

Types of Energy Elastic Potential

Types of Energy Gravitational Potential

Types of Energy Electrical

Types of Energy - Kinetic

Types of Energy - Magnetic

Types of Energy Atomic or Nuclear

Types of energyHeat (Thermal)ElectricalLightGravitational potentialElastic potentialSoundMagneticAtomicChemicalKinetic

Energy type Exampleshot water, a hot radiator

light bulbs, Bunsen flame

talking, TV, radio

a door closer, clockwork toys

a book on a high shelf, a flying ball

anything that is moving

anything electrical

food, batteries, burning things

Atomic or nuclear nuclear bombs, and power stations

Energy type Examples

Thermal hot water, a hot radiator

Light light bulbs, Bunsen flame

Sound talking, TV, radio

Elastic Potential a door closer, clockwork toys

Gravitational Potential a book on a high shelf, a flying ball

Kinetic anything that is moving

Electrical anything electrical

Chemical food, batteries, burning things

Nuclear nuclear bombs, and power stations

Law of Energy Conservation22/09/2020

Energy cannot be created or destroyed, only changed from

one form into another

Energy is measured in Joules (J)

22/09/2020Energy changes

To describe an energy change for a light bulb we need to do 3 steps:

Electricity Light + heat

1) Write down the starting energy:

3) Write down what energy types are given out:2) Draw an arrow

1) An electric fire

2) A rock about to drop

3) An arrow about to be fired

© Boardworks Ltd 2001

1.A match burning

2.A portable torch

3.A microphone

4.A radio

5.A TV

6.A catapult

7.A mobile phone

8.A car

chemical to heat and light

chemical to heat and light

sound to electrical

electrical to sound and heat

electrical to sound and light and heat

elastic to kinetic and heat

chemical to sound and light and heat

chemical to kinetic & sound & heat

Click for answers

In all these transfers, energy is conserved.

Energy cannot be destroyed or created.

Suggest the energy transfer for the devices below:

Exercise 1: Types of Energy

Many objects EMIT(GIVE OUT)

light. This is a type of

electromagnetic radiation.

All sounds are caused by

VIBRATIONS. The LOUDER a

sound, the MORE energy it has.

This is the energy possessed by

an object due to its MOVEMENT.

The FASTER an object moves,

the MORE energy it has.

Kinetic Energy

Sound Energy

Light Energy

Exercise 2: Types of Energy

This is the energy stored in the

NUCLEI of atoms.

This is the energy an object

possesses due to it being

STRETCHED or SQUASHED.

The HOTTER an object is, the

MORE of this energy it has.

Heat Energy

Nuclear Energy

Elastic Energy

Exercise 3: Types of Energy

This is the energy possessed by

FLOWING ELECTRONS

(ELECTRICAL CURRENT).

The is the energy an object

possesses due to its position in a

GRAVITATIONAL FIELD. The

HIGHER an object is in the field,

the MORE of this energy it has.

This is the energy stored in

FUELS, FOOD and BATTERIES.

It is released through CHEMICAL

REACTIONS.

Electrical Energy

Chemical Energy

Gravitational Energy

Exercise 4: Forms of Energy1. Which type of energy is emitted by the Sun, lamps and stars?

2. Which type of energy is stored in the nuclei of atoms?

3. Which type of energy is stored in food, fuels and batteries?

4. Which type of energy is possessed by flowing electrons?

5. Which type of energy is possessed by an object that is being

stretched or compressed?

Light (and heat)

Nuclear

Chemical

Electrical

Elastic

Exercise 5: Forms of Energy1. What happens to the gravitational energy of an object as it gets

higher in a gravitational field?

2. What happens to the kinetic energy of an object as it moves

faster?

3. Which type of energy are kettles, irons and Bunsen burners

designed to produce?

4. Which sounds have the most energy, loud or quiet?

It increases

It increases

Heat

The louder the sound, the more energy it has

Exercise 6: Link the Diagram and the Energy

Sound Chemical Light Kinetic

Exercise 7: What is the Desired Energy Transfer for a Radio?

Electrical sound

Exercise 8: What is the Desired Energy Transfer for a Petrol Engine?

Chemical kinetic energy