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