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Potential and Kinetic Energy - Assignment
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Complete these sentences.
If a roller coaster train has a potential energy of 1,500 J and a kinetic energy of 500 J as it starts to travel downhill, its total energy is J.
Once the roller coaster train gets closer to the bottom of the hill, its kinetic energy increases to 1,100 J, and its potential energy decreases to J.
When the train reaches the bottom of the track and is traveling along the ground, its kinetic energy is J.
2,000 900 and 2,000
What is the potential energy of a 150 kg diver standing on a diving board that is 10 m high?
The potential energy is J.
14700
A 17 kg box sitting on a shelf has a potential energy of 350 J. How high is the shelf? Round your answer to the nearest whole number.
The shelf is m high.
2
A crane lifts a cargo box 10 m off the ground. If the crane lifts the cargo box twice as high, the potential energy will increase by
half.
the same amount.
two times.
four times.
two times.
Read the scenario, then answer the questions.
A 2 kg ball is thrown upward with a velocity of 15 m/s.
What is the kinetic energy of the ball as it is being thrown? J
What is the potential energy of the ball when it gets to its maximum height just before falling back to the ground? J
225 and 225
Boat A and Boat B have the same mass. Boat A's velocity is three times greater than that of Boat B. Compared to the kinetic energy of Boat B, the kinetic energy of Boat A is
one-third as much.
three times as much.
six times as much.
nine times as much.
nine times as much
Determine how potential and kinetic energy changes at each position of the pendulum as the ball swings from A to E.
Position A:
Position B:
Position C:
Position D:
Position E
Position A:✔ is all potential
Position B✔ is losing potential and gaining kinetic
Position C:✔ is all kinetics
Position D:✔ is losing kinetic and gaining potential Position E✔ is all potential
Read the scenario and solve these two problems.
When traveling at top speed, a roller coaster train with a mass of 12,000 kg has a velocity of 30 m/s. The kinetic energy of the train at top speed is J.
Given this kinetic energy, what is the tallest hill this roller coaster train can reach the top of?
The train can climb a hill that is m high.
5400000 and 46
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