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WorksheetsWork, Power, & Energy
Total questions: 11
Worksheet time: 8mins
Name
Class
Date
1.
In physics, we define work as this
a)
force x time
b)
force x distance
c)
force / time
d)
force / distance
2.
In physics, power is identified as this
a)
force x distance
b)
distance / time
c)
work / time
d)
time / work
3.
Jack pushes a lawnmower with a force of 25N and performs 250 J of work. How far did he push the mower?
a)
1 meter
b)
1 kilometer
c)
10 meters
d)
none of these
4.
A mason raises a 2,000 N bag of cement from the floor to over his head (2.0 meters) in 4 seconds. What is his average power input?
a)
1,000 W
b)
2,000 W
c)
500 W
d)
100 W
5.
A 600 N hiker climbs a hill 100 meters high. How much work does he do?
a)
60,000 J
b)
32 J/s
c)
600 J
d)
8 W
6.
A 200 W conveyor is used to raise boxes of cupcakes up a 10 meter building. If it takes 10 seconds to move a cake, how much do the boxes weigh?
a)
20 N
b)
200 N
c)
2,000 N
d)
2 N
7.
A boy applies a force of 100 N for a distance of 10 M, how much work does he perform?
a)
1,000 J
b)
100 J
c)
10,000 J
d)
100,000 J
8.
A boy applies a force of 100 N for a distance of 10 M, how much work does he perform?
a)
1,000 J
b)
100 J
c)
10,000 J
d)
100,000 J
9.
A girl pushes a sled across the snow with a force of 25 N. If she does 250 J of work, how far does she push the sled?
a)
1 M
b)
10 M
c)
10 W
d)
10 N/s
10.
If you perform 1,000 J of work moving a mattress 5 M, how much does it weigh?
a)
50 J
b)
20 N
c)
200 N
d)
6 W
11.
How far will 350 J of work raise a 70 N block of chocolate?
a)
5 M
b)
25 M
c)
100 N
d)
5 W
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