Energy Flashcards
The types of energy
Kinetic Heat Light Gravitational potential Chemical Sound Electrical Elastic potential Nuclear
What does the energies tell us
Kinetic - anything moving
Heat - something that gives off heat
Light - something that gives us light to see
Gravitational potential - something that falls at a great height
Chemical - food / battery / fuel
Electrical - something that uses electricity ( wires )
Elastic potential- anything stretched
Nuclear - nuclear power plant
What can energy not be?
Energy cannot be created or destroyed - only transferred
What is energy
Energy is conserved ( kept the same )
Example 1
Torch:
Chemical - light
Example 2
Fan:
Electrical - sound
Kinetic
Example 3
Clock :
Chemical-kinetic
Sound
Energy transfer example 1
An object projects upwards or up a slope
Kinetic energy - Gravitational potential
Energy transfer example 2
A moving object hitting an obstacle
Kinetic - kinetic
Energy transfer examples 3
An object being accelerated by a constant force
Kinetic energy increases
Energy transfer examples 4
A vehicle slowing down
Kinetic decreases
Energy transfer examples 5
Bringing water to a boil in an electrical kettle
Electrical - heat
Energy transfer diagram
The width of the arrow reflects the amount of energy
Energies that can be stored
Kinetic Heat Chemical Elastic potential Nuclear Gravitational potential
Energies that can’t be stored
Light
Electricity
Sound
