Post on 12-Mar-2021
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