Work and Power Problems
3 years ago
wasinger
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• Question 1
5 seconds
Q. The SI Unit for Mass?
Kilogram (Kg)
Newton (N)
Joule (J)
Watt (W)
• Question 2
30 seconds
Q. The SI Unit for Work
Newton (N)
Joule (J)
Second (s)
Watt (W)
• Question 3
30 seconds
Q. The SI Unit for Force
Newton (N)
Joule (J)
Second (s)
Watt (W)
• Question 4
30 seconds
Q. The SI Unit for Time
Newton (N)
Joule (J)
Second (s)
Watt (W)
• Question 5
30 seconds
Q. The SI Unit for Power
Newton (N)
Joule (J)
Second (s)
Watt (W)
• Question 6
30 seconds
Q. What is the formula for Work?
E=mc2
W= F x d
P = W/T
• Question 7
30 seconds
Q. What is the formula for Power?
E=mc2
W= F x d
P = W/T
• Question 8
60 seconds
Q. F=200 N
d=50 m
w=??
4 J
0.25 J
250 J
10,000 J
• Question 9
900 seconds
Q. If 150 Joules of work is needed to move a box 10 meters, what force was used?
1500 N
15 N
1.5 N
150 N
• Question 10
30 seconds
Q. When a pendulum swings, at which point is potential energy at its greatest
1
2
3
4
• Question 11
30 seconds
Q. When a pendulum swings, at which point is kinetic energy highest?
1
2
3
4
• Question 12
120 seconds
Q. What kind of energy is in a battery?
Potential
Kinetic
• Question 13
30 seconds
Q. As a pendulum swings from its highest to lowest position, what happens to its kinetic and potential energy?
Both the potential energy and kinetic energy decrease
The potential energy decreases while the kinetic energy increases
The kinetic energy decreases while the potential energy increases
Bothe the potential energy and kinetic energy increase
• Question 14
120 seconds
Q. Find the distance an object traveled if a force of 350 N acted on it to produce 0 work?
3 m
2 m
1 m
0 m
• Question 15
120 seconds
Q. An Xbox consumes 15.7 watts while in standby mode. If you leave it in standby mode for 86,400 seconds (one day), how much work was done?
1,356,490 J
1,356,480 J
1,356,470 J
1,356,460 J
• Question 16
120 seconds
Q. How far does a car that weighs 5,000 N go if 18,000 J of work is done on it?
3.8 m
3.7 m
3.2 m
3.6 m
• Question 17
900 seconds
Q. W = 500 Joules
t = 25 seconds
P = ???
0.05 W
20 W
12500 W
2000 W
• Question 18
900 seconds
Q. How much time is needed to produce 720 Joules of work if 90 watts of power is used?
0.125 s
8 s
64800 s
80 s
• Question 19
300 seconds
Q. A person weighing 600 N gets on an elevator. The elevator lifts the person 6 m in 10 seconds.  How much power was used?