M3.3 work done and power Flashcards
name all energy stores
Kinetic
GPE
Elastic
chemical
Electrical
Thermal
Nuclear
Radiant
what is radiant energy
energy carried by all types of electro magnetic waves
What is kinetic energy
energy stored by anything moving
What is Gravitational potential energy
energy stored when an object in a gravitational field is raised up
(has a “potential to fall” and transform to kinetic energy)
what is chemical energy
energy stored in chemical mixtures and compounds
energy stored in the chemical bonds
What is electrical energy
energy stored by the motion of charge carriers in a circuit
What is Thermal Energy
energy due to the temperature of an object
What is nuclear energy
Energy contained within the nucleus of an atom
define energy transfer
energy transferring from one object to another or from place to place
i.e car crashes into a person some of the cars kinetic energy is transferred to the person
define energy transfrom
energy transforming into another store
wat are the four ways energy can be transferred
Heating
Working
Waves
Electricaly
define energy tranfer by heating
when there is a difference in temperature
i.e ice cream melting on hot day
define transfer by working
when energy is transfered by a force i.e if you pushed someone they would gain kinetic energy due to the force applied
what is the equation for work done (in words)
W = F*s
work done = force * distance moved
equatons for power
work done/ time
Force * velocity
