energy stores and transfer Flashcards
What has energy in s thermal store
everything
what does a higher temperature mean
more energy is stored
what has energy in a kinetic store
anything that’s moving
what has energy in a chemical store
anyhting with energy that can be released by a chemical reaction ( food or fuel)
what has energy in a gravitational potential store
anything in a gravitational field ( anything that can fall) if it is higher up more energy is stored
what has energy in an elastic potential store
anyhting that can be stored like springs
what has energy in an electrostatic store
electric charges that can attract or repel each other
what has energy in a magnetic store
magnets that can attract or repel each other
what type of energy transfers between stores is dropping an object
gravitational potential energy where is energy is transferred to a kinetic store
what type of energy transfers between stores when burning fuels
chemical store like fuel is transferrred to a thermal store like its surroundings
what type of energy is transferred between stores when using a circuit to move a motor
a chemical store like a battery and a kinetic store like a motor
what type of energy is transferred betwwen stores when releasing a stretched object
elastic potential store to a kinetic store
what type of energy is transferred between stores during metabolism of food
it is transfer from the chemical store (food) to thermal and kinetic stores (keeping warm and moving)
what is the first way of transferring energy
mechanically which is a force that makes something move)pushing, pulling, stretching, squeezing
what is the second way of transferring energy
electrically- electric charges move around a circuit
what is the third way or transferring energy
heating- hotter objects transfer energy to cooler objects
what is the fourth way of transferring energy
light and sound- waves transfer energy between places
when a force moves an object through a distance where does the energy go
to the objects kinetic energy store
what equation can you do to work out how much energy has been transferred /work done (joules)
E=F x D
what does E stand for in the equation for energy transferred
E stands for energy transferred / workd done in Joules, J
what does F stand for in the equation for energy transferred
F stands for force in Newtons, N
what does D stand for in the equation for energy transferred
D stands for the distance moved in metres, M
A machine can apply a larger force over what distance
a shorter distance
A machine can apply a smaller force over what distance
longer
