WorksheetsPhysics First Final Review - Energy/Work/Power
Total questions: 24
Worksheet time: 12mins
Name
Class
Date
1.
units for work are
a)
Newtons
b)
Joules
c)
meters
d)
seconds
2.
Work done = Force x _________
a)
a. distance
b)
b. acceleration
c)
c. velocity
d)
d. speed
3.
A 5000N block is lifted 10 m. How much work was done?
a)
50000 J
b)
5000 J
c)
500 J
d)
50 J
4.
A force is a _____ or _______
a)
simple complex
b)
push pull
c)
up down
d)
in out
5.
Which situation is work not done?
a)
lifting a 20 pound box off the floor
b)
holding a 20 pound box above the floor
c)
sliding a 20 pound box across the floor
d)
sliding a 20 pound box up an inclined plane
6.
The unit used to measure work is the
a)
Watt
b)
Newton
c)
Joule
d)
meter
7.
The unit used to measure power is the
a)
Watt
b)
Newton
c)
Joule
d)
Newton*meter
8.
True or false
You do work only when you exert a force on an object and move it int that direction.
a)
true
b)
false
9.
work is a measurement of how much force is applied over a certain
a)
distance
b)
velocity
c)
shape
d)
size
10.
If you push a cart with a force of 60 N for 2 m... how much work have you done
a)
120 J
b)
30 J
c)
120 N
d)
30 N
11.
Energy due to motion is ____________ energy.
a)
Potential
b)
Energy
c)
Kinetic
d)
Friction
12.
__________ is stored energy.
a)
Potential
b)
Kinetic
c)
None of the above
d)
All of the above
13.
How much time is needed to produce 720 Joules of work if 90 watts of power is used?
a)
0.125 s
b)
8 s
c)
64800 s
d)
80 s
14.
The faster an object moves, the ________ kinetic energy it has.
a)
more
b)
less
c)
none of the above
d)
all of the above
15.
Gravitational potential energy depends on the ________ and ________ of the object.
a)
position and mass
b)
Friction and movement
c)
Mass and Movement
d)
Height and Friction
16.
Calculate the KE of a moving 4 kilogram object traveling at a velocity of 3 m/s.
a)
18 J
b)
36 J
c)
12 J
d)
6 J
17.
What kind of energy is in a rock at the edge of a cliff?
a)
Potential
b)
Kinetic
18.
What kind of energy is in a moving skateboard?
a)
Potential
b)
Kinetic
19.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
20.
At which point is kinetic energy greatest?
a)
W
b)
X
c)
Y
d)
Z
21.
Energy can be _____________ or changed from one type to another.
a)
destroyed
b)
transferred
c)
created
d)
ignored
22.
When plants convert the sun's energy into food, which type of energy is it?
a)
kinetic
b)
chemical
c)
thermal
d)
radiant
23.
What are the two factors that affect kinetic energy?
a)
time and energy
b)
power and mass
c)
mass and velocity
d)
time and work
24.
The more mass an object has, the ________ kinetic energy it has.
a)
more
b)
less
c)
none of the above
d)
all of the above
100 %
