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15
×
State the energy conversion that takes place as the ball moves from the top of the ramp to the bottom and just before hitting the small box.
Gravitational potential energy to kinetic energy.
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15
×
The graph below shows the changes in energy as Jolin swings from A to B to C and back again to A. What does each of the lines on the graph represent?
X: Kinetic energy Y: Gravitational Potential Energy
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×
boom
Lose 50 points!
Oops!
×
fairy
Take points!
5
10
15
20
25
×
gift
Win 20 points!
Okay!
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thief
Give points!
5
10
15
20
25
×
boom
Lose 50 points!
Oops!
×
seesaw
Swap points!
Okay!
×
fairy
Take points!
5
10
15
20
25
×
thief
Give points!
5
10
15
20
25
15
×
At which point, A, B or C, does the metal bob possess the most amount of gravitational potential energy?
A and C
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15
×
Complete the energy conversion from Position A to C by stating only the main energy involved.
GPE, KE + GPE, Heat and Sound
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15
×
Write down the energy conversion that has taken place in the above experiment.
GPE, KE, KE
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15
×
At which stage would the toy car possess the most potential energy?
Just wound up, ready to go.
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15
×
Which type of energy that enable the planes to fly?
Kinetic energy
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×
thief
Give points!
5
10
15
20
25
×
fairy
Take points!
5
10
15
20
25
×
fairy
Take points!
5
10
15
20
25
×
lifesaver
Give 25 points!
Oops!
15
×
State the energy change that takes place when the hammer is dropped on the pile.
GPE, KE, Heat and Sound
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15
×
At which point(s) does the car have no kinetic energy?
A and F
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15
×
State the main energy change in the set-up.
Chemical potential energy, Heat, kinetic energy
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×
lifesaver
Give 10 points!
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×
fairy
Take points!
5
10
15
20
25
×
rocket
Go to first place!
Okay!
×
lifesaver
Give 10 points!
Oops!
×
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