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