Energy and its Transfer
D. Crowley, 2008 Energy Transfer To understand energy transfer, and
to be able to show this in a diagram Different Types of Energy
Energy What types of energy are there?
Electrical energy - a current in a circuit etc Light energy - from
the sun; a light bulb etc Sound energy - from a loudspeaker; a drum
etc Kinetic (movement) energy - anything which moves! Thermal
(heat) energy - transferred from hot objects to colder ones
Gravitational potential energy - possessed by anything with the
ability to fall Elastic potential energy - stretched springs;
elastic and rubber bands etc Chemical energy - possessed by food;
fuels; batteries etc Created & Destroyed Energy is the ability
to do some work - everything that happens needs energy However,
energy cannot be created or destroyed, only transferred from place
to place in a variety of ways Energy Complete the energy types
worksheet Energy Transfer Station Initial Energy Useful Energy
Transfer I
Useful Energy Transfer II Non-useful Energy Transfer(s) Radio
Electrical Sound None Heat / Light Handheld windmill Hair dryer
Kettle Solar powered windmill Bunsen burner Plant Signal generator
& speaker Clockwork toy Energy Transfer Station Initial Energy
Useful Energy Transfer I
Useful Energy Transfer II Non-useful Energy Transfer(s) Radio
Electrical Sound None Heat / Light Handheld windmill Chemical /
Kinetic Kinetic Hair dryer Heat Kinetic (particles blown out)
Kettle Solar powered windmill Light Kinetic / Sound / Heat Bunsen
burner Chemical Light / Sound Plant Signal generator & speaker
Kinetic (speaker movement) / Heat Clockwork toy Elastic potential
Sound (useful if part of toy) Sound / Heat (int. movement) Energy
Complete the energy changes worksheet Energy Energy Waste When
energy is transferred from one type to another there is often
wasted energy This wasted energy is in a form which you do not want
E.g. what is the wasted energy in a circuit which lights a bulb? In
a circuit chemical energy (within the battery) is transferred to
electrical energy which runs through the circuit to light energy in
the bulb However, heat from the current in the wires / when the
bulb is on is our wasted energy Energy Transfer Your task is to go
to each of the stations and record the initial energy (where the
energy comes from); what useful energy transfer(s) the device
gives; and what non-useful energy transfer(s) there is
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