energy transfers: bungee jumper Flashcards

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1
Q

what happens at the start of the jump?

A

all of the energy in the system is the store of gravitational potential energy

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2
Q

what happens when the jumper falls?

A

energy is transferred from the gpe store to the kinetic energy store

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3
Q

what happens when the bungee rope just starts to tighten?

A

the kinetic energy store is now at its maximum

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4
Q

what happens when the rope is fully extended?

A

the kinetic energy store is zero, because the jumper is not moving

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5
Q

what happens when the rope recoils?

A

the energy is transferred from the elastic potential energy store back to the kinetic energy store

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6
Q

why does the bungee jumper never return back to the original position?

A

because the energy is dissipated as thermal energy, due to friction with air particles and stretching affects in the not fully elastic rope

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