P1-changes in energy stores Flashcards
1
Q
name the 8 stores of energy
A
magnetic internal (thermal) chemical kinetic electrostatic elastic potential gravitational potential nuclear
2
Q
what is energy dissipation?
A
when energy is lost
3
Q
what is the law of the conservation of energy?
A
energy can be transferred usefully, stored or dissipated, but it cannot be created or destroyed.
4
Q
what is the calculation for kinetic energy?
A
kinetic energy= 0.5 x mass x speed squared
5
Q
how do you calculate gravitational potential energy?
A
gravitational potential= mass x gravitational field strength x height
6
Q
what is an example of a magnetic energy store?
A
fridge magnet
7
Q
what is an example of a thermal energy store?
A
hot coffee
8
Q
what is the description of a kinetic energy store?
A
the energy of a moving object
