Kinetic and potential energy stores Flashcards
when is energy transferred to kinetic energy store
when an object speeds up
what does the energy in a kinetic energy store depend on
the objects mass and speed
formula for kinetic energy
Ek= 1/2 x m x v^2
what is gravitational potential energy
the energy stored in an object due to its position above earths surface, and this is due to the force of gravity acting on the object
what happens in terms of energy stores when an object falls
the gravitational potential energy is transferred to kinetic
formula for gravitational potential energy
Ep = m x g x h
formula of elastic potential energy
Ee = 1/2 x k x e^2
energy lost from gpe store=
energy gained in Ek store
what is kinetic energy
the energy stored in moving objects
what happens when we stretch a spring
we are applying a force on it to change its length
what is elastic potential energy
the energy stored in a stretched spring
what is the relationship between the force applied and the extension
they are directly proportional
what does the value of the spring constant depend on
the spring
