P1 Energy Flashcards
What is thermal energy
The energy in a system which is responsible for the temperature
What is kinetic energy
The energy an object has due to movement
Examples of thermal energy
Anything hot, sun
Examples of kinetic energy
Car, airplane
Examples of elastic potential energy
Elastic bands
Examples of chemical potential energy
Battery, food
Examples of Gravitational potential energy
Airplanes
Examples of magnetic potential energy
Magnets
Relationship between input energy and output energy
Input energy = output energy
What is the law of conservation of energy
Energy can not be created or destroyed, only transferred from one type to another
Energy efficiency (%) equation
Energy efficiency = useful energy output/total energy input x100
What is work
The amount of energy transformed when a force moves in the direction of the force
Equation which links work, force and distance
Work (M) = force (N) x Distance (M)
Equation which links power, energy and time
Power = energy/time
Equation for kinetic energy
KE = 1/2xmxv^2
