Physics- SP3 Flashcards
What is the equation for calculating the GPE?
GPE = m x g x h
What is the equation for calculating the KE?
KE = 0.5 x m x v2
How to you calculate efficiency?
Efficiency = useful output energy / total input energy
Examples of chemical energy
Food, fuel, batterirs
Examples of kinetic enery
Moving objects
Examples of thermal energy
Hot objects
Examples of elastic potential/strain energy
Stretched, squashed, twisted objects
Examples of gravitational energy
Objects in high positions
Examples of atomic/nuclear energy
Stored inside atoms
What does the law of conservation of energy state?
It states that energy cannot be destroyed or created.
How is energy transferred by conduction?
Vibrations are passed on between particles.
How is energy transferred by convection?
Warmer particles are warmer than the rest and sets up a convection current
Define renewable energy
Resources that can be renewed
Define non-renewable
Resources that cannot be renewed
What is the equation for finding velocity?
V = (2 x ke / m)
Square rooted
Remember that ke can also be gpe
