Physics - P1 Flashcards
What is the equation for efficiency?
Efficiency = useful output energy transfer (divided by) total input enutransfer
What is the equation for wasted energy?
Wasted energy = total - useful
What is the equation for kinetic energy?
1/2 x mass x velocity2
What is the equation for specific heat capacity?
Specific heat capacity = energy (divided by) mass x temperate change
What are the two equations for work done?
Work done = energy transferred
Work done = force x distance moved
What is the equation for gravitational potential energy?
Gravitational potential energy = mass x gravitational field strength x height
What is the equation for power?
Power = work done (divided by) time
What is the other equation for power?
Power = energy transferred (divided by) time
What is power?
- power is the rate at which work is done
What will renewable energy resources not do?
- renewable energy resources will not run out because they can easily be regenerated
What do all moving objects have?
- all moving objects have kinetic energy
- the amount of kinetic energy they have depends on their speed and mass
What are fossil fuels?
- fossil fuels are non-renewable energy resources because the amount of fossil fuels available is limited
