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Energy Review
Question | Answer |
---|---|
At what point does the pendulum possess all KE | C |
At what point is all the energy in the form of PE | A and D |
At what point is it 1/2 KE and 1/2 PE | B |
At what point is velocity highest | C |
If the ball is released from position A, can it go even higher than position D | No |
Units of PE, KE, and work are measured in_______ | Joules |
Units of Power are measured in_______ | Watts |
Units of Force are measured in___________ | Newtons |
The work you put into a system is a result of the speed at which you do the work | false |
Heat is form of energy | true |
You must remove all the energy from a falling egg to get it to land safely on the ground | true |
Power and time are directly proportional | false |
Kinetic energy represents the energy associated with low high you are above the ground | false |
Lifting a barbell over your head requires work | true |
Holding a barbell over your head requires work | false |
A joule is another name for Newton meter | true |
The total amount of energy in the universe always remains the same | true |
You can create energy by eating a granola bar | false |