WorksheetsPhysical Science Power
Total questions: 26
Worksheet time: 1hrs 2mins
Name
Class
Date
1.
How much work is being done with 200 N of force over 426 meters?
a)
85,200 J
b)
45,620 J
c)
90,480 J
d)
62,329 J
2.
If 150 Joules of work is needed to move a box 10 meters, what force was used?
a)
1500 N
b)
15 N
c)
1.5 N
d)
150 N
3.
What is the kinetic energy of a 9 kg book that has a speed of 4 m/s?
a)
18 J
b)
36 J
c)
72 J
d)
144 J
4.
What is the potential energy done in lifting a 50 kg barbell 6 m above the floor?
a)
150 J
b)
300 J
c)
1470 J
d)
2940 J
5.
How much work does Drax perform pushing Rocket in a cart 200 m with 100 N of force?
a)
2 J
b)
10,000 J
c)
20,000 J
d)
40,000 J
6.
At the start of a ski jump, a skier begins at rest at the top of a hill. What types of energies are present?
a)
Kinetic
b)
Gravitational
c)
Kinetic & Gravitational
d)
Gravitational & Potential
7.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
8.
At which point(s) on the roller coaster is the kinetic energy at its maximum?
a)
A
b)
B
c)
C
d)
D
9.
Which value and symbol are incorrectly paired?
a)
work and joules
b)
force and newton
c)
power and watt
d)
potential energy and watt
10.
What is the power required to lift 500 Joules in the air in 2 s?
a)
250 W
b)
25 W
c)
100 W
d)
4 W
11.
What is the potential energy of a 5 kg object that is raised 5 m in the air?
a)
5 J
b)
1 J
c)
25 W
d)
245 J
12.
What is the kinetic energy of a 5 kg object moving at 10 m/s?
a)
50 J
b)
500 J
c)
250 J
d)
25 J
13.
How far is an object pushed if 250 J of work is done with a force of 5 N?
a)
1250 m
b)
50 m
c)
500 m
d)
245 m
14.
When an object drops, what happens to the energy?
a)
Potential energy stays the same
b)
Potential energy increases
c)
Kinetic energy increases
d)
Kinetic energy stays the same
15.
What is the definition of energy?
a)
The ability to do work
b)
The ability to apply a force
c)
The distance an object moves
d)
How fast an object moves
16.
A roller coaster has a mass of 250 kg, and is 50 meters above the ground, what is the potential energy? PE=mgh
a)
122,625 Joules
b)
5,600 Joules
c)
234,799 Joules
17.
A baby carriage that is carrying twins is sitting at the top of a knoll that is 21 m high. The carriage
with the babies are 48kg. What is the Potential Energy of the twins and the carriage? PE=mgh
with the babies are 48kg. What is the Potential Energy of the twins and the carriage? PE=mgh
a)
5,524 Joules
b)
45,125 Joules
c)
9,888 Joules
18.
The SI Unit for Power
a)
Newton (N)
b)
Joule (J)
c)
Second (s)
d)
Watt (W)
19.
W = 500 Joules
t = 25 seconds
P = ???
t = 25 seconds
P = ???
a)
0.05 W
b)
20 W
c)
12500 W
d)
2000 W
20.
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
21.
What kind of energy is in a moving skateboard?
a)
Potential
b)
Kinetic
22.
What kind of energy is in a rock at the edge of a cliff?
a)
Potential
b)
Kinetic
23.
What kind of energy is in flowerpot sitting on a windowsill?
a)
Potential
b)
Kinetic
24.
Which is the best example that something has kinetic energy?
a)
a. a car parked on a steep hill
b)
b. a tennis ball rolling across the court
c)
c. a picture hanging on the wall
d)
d. a piece of coal before it's burned
25.
When a pendulum swings, at which point is kinetic energy highest?
a)
1
b)
2
c)
3
d)
4
26.
Which point has the most potential energy?
a)
G
b)
f
c)
b
d)
a
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