
Power and Work in Physics

Interactive Video
•
Physics, Science, Mathematics
•
9th - 12th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the basic definition of power in physics?
The rate at which energy is stored
The rate at which work is done
The amount of force applied over time
The distance covered per unit time
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is NOT an equation for power?
Power = Energy / Time
Power = Force x Average Velocity
Power = Force x Distance
Power = Work / Time
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the elevator problem, what is the total weight the motor must lift?
21,640 Newtons
17,640 Newtons
4,000 Newtons
1,800 Newtons
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the minimum power in watts required to move the elevator at a speed of 3 m/s?
4,000 watts
87 watts
21,640 watts
64,920 watts
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many watts are equivalent to one horsepower?
1,500 watts
500 watts
1,000 watts
746 watts
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a motor delivers 64,920 watts, how many horsepower is that approximately?
120 horsepower
50 horsepower
100 horsepower
87 horsepower
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a typical power problem, if a force of 60 Newtons moves an object 3 meters in 8 seconds, what is the power output?
15 watts
45 watts
22.5 watts
30 watts
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