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An engineer must calculate the potential energy of a roller coaster car at the top of an incline. Which information would BEST help the engineer determine the potential energy of the car?
power
As the kinetic energy increases, the potential energy decreases.
kinetic energy
3000 J
A person pushes on a heavy box but is unable to move it.
25 Watts
the mass of the roller coaster car at full capacity
the volume and mass of the box
A man is intensely working on his homework... So much that he has done 100 joules of work in 4 seconds. How much power did the man exert?
power
As the kinetic energy increases, the potential energy decreases.
kinetic energy
3000 J
A person pushes on a heavy box but is unable to move it.
25 Watts
the mass of the roller coaster car at full capacity
the volume and mass of the box
If Joe does a certain amount of work in a certain amount of time, he is most likely demonstrating which of the following?
power
As the kinetic energy increases, the potential energy decreases.
kinetic energy
3000 J
A person pushes on a heavy box but is unable to move it.
25 Watts
the mass of the roller coaster car at full capacity
the volume and mass of the box
What is the difference between potential energy and kinetic energy?
power
As the kinetic energy increases, the potential energy decreases.
kinetic energy
3000 J
A person pushes on a heavy box but is unable to move it.
25 Watts
the mass of the roller coaster car at full capacity
the volume and mass of the box
A student applied a force of 200 N to push a box 15 m down the sidewalk. Given the formula, W = F × d, how much work has been done?
power
As the kinetic energy increases, the potential energy decreases.
kinetic energy
3000 J
A person pushes on a heavy box but is unable to move it.
25 Watts
the mass of the roller coaster car at full capacity
the volume and mass of the box
Mr. Moyers’ class was studying how work is done on an object. In which situation is the amount of work done on the object equal to zero?
power
As the kinetic energy increases, the potential energy decreases.
kinetic energy
3000 J
A person pushes on a heavy box but is unable to move it.
25 Watts
the mass of the roller coaster car at full capacity
the volume and mass of the box
A rock that falls off a cliff demonstrates both potential and kinetic energy. Which is the BEST comparison of these two forms of energy?
power
As the kinetic energy increases, the potential energy decreases.
kinetic energy
3000 J
A person pushes on a heavy box but is unable to move it.
25 Watts
the mass of the roller coaster car at full capacity
the volume and mass of the box
While on a movie set, a stuntman jumps off the roof of a building. As he falls toward an airbag, what is INCREASING?
power
As the kinetic energy increases, the potential energy decreases.
kinetic energy
3000 J
A person pushes on a heavy box but is unable to move it.
25 Watts
the mass of the roller coaster car at full capacity
the volume and mass of the box
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