Year 9 Physics Flashcards by unknown Unknown

Q

what is the formula for gravitational potential energy?

A

mgh

mass x g x height

kg x 10N/kg x m

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Q

what is the formula for kinetic energy?

A

1/2 mv ^2

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Q

what is gpe equal to?

A

kinetic energy gained

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Q

what is the formula for work done?

A

force x distance

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Q

what is work done equal to?

A

energy converted

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Q

what is work measured in?

A

newtons

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Q

what is energy measured in?

A

joules

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Q

what is the formula for power?

A

work done / time taken

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Q

what is power measured in?

A

watts

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Q

what changes gpe?

A

losing/gaining height

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Q

what changes kinetic energy?

A

increasing/decreasing speed

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Q

what is power?

A

rate of conversion of energy

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