Energy: Question Preview (ID: 16280)


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(J) is a unit of
a) potential energy b) work. c) kinetic energy d) any of the above.
What is kinetic energy?
a) the energy an object has due to its motion b) the stored energy of an object due to its position c) the energy an object might have if it existed d) energy from the sun
What is the unit for work
a) mass b) watts c) newtons d) joules
What would have the greatest kinetic energy?
a) a car driving down a hill b) a person running down a hill c) a ball rolling down a hill d) none of the above
Which of the following is the combination of units called a joule?
a) kg · m/s2 b) kg/s2 c) kg · m2/s2 d) kg · m/s
Can you create or destroy energy?
a) yes b) no c) only if you are really strong d) soemtimes
Most all energy comes to and leaves the earth in the form of
a) nuclear energy. b) chemical energy. c) radiant energy. d) kinetic energy.
In the formula W=Fxd, What does the d stand for?
a) distance b) force c) work d) displacement
A volleyball player spiking a ball
a) Kinetic b) potential c) no energy d) magnetic
Sitting in the top of a tree
a) kinetic b) no energy c) potential d) radiant
Is the person doing work? 1. When pushing a 1000 N car 10 m. Lifting a rock off the ground.
a) yes b) no c) soemtimes d) all of the above
Formula or work
a) wxd b) w/d c) fxd d) w/f
unit of distance
a) newton b) joule c) meter d) seconds
La of conservation of energy
a) energy can be create but not destroy b) energy can not be created or distroy c) people destroy the energy with pollution. d) we can creatre energy in lab.
unit of force
a) joule b) newton c) meter d) Kilograms
Is the person doing work? When pushing a 1000 N car 10 m.
a) no b) yes c) maybe d) none of teh above
You use 35 J of energy to move a 7.0 N object. How far did you move it?
a) 5J b) zero c) 5M d) 245J
Calculate the work done by a 47 N force pushing a 0.025 kg pencil 0.25 m for 23 seconds.
a) zero b) 1081J c) 1161J d) 1081N
Ifa person is Holding a book in your hands. Is doing work or not?
a) yes b) no c) ______ d) ______
A bowling ball sitting on the rack.
a) kinetic b) potential c) no energy d) radiant
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