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WorksheetsWork Done
Total questions: 30
Worksheet time: 2hrs 54mins
Name
Class
Date
1.
Calculate work: A 100 Newton force is applied to move a 15 kg object a distance of 5 meters?
a)
20 Joules
b)
75 Joules
c)
500 Joules
d)
1500 J
2.
A force exerted over a distance to move an object is ______________________.
a)
power
b)
work
c)
momentum
d)
Watt
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.
How much work is produced when 350 N is used to move a car 5 m?
a)
70 J
b)
1750 J
c)
355 J
d)
175 J
5.
Would it be easier to move a box of the same mass up a ramp that was long and gradual or short and steep?
a)
long and gradual
b)
short and steep
6.
The unit used to measure work is the
a)
Watt
b)
Newton
c)
Joule
d)
meter
7.
Which of the following is the best example of work being done.
a)
doing homework
b)
lifting a box
c)
pushing a stationary box
d)
holding a box
8.
A 5000N block is lifted 10 m. How much work was done?
a)
50000 J
b)
5000 J
c)
500 J
d)
50 J
9.
How much work is produced when 350 N is used to move a car 5 m?
a)
70 J
b)
1750 J
c)
355 J
d)
175 J
10.
In which of these cases is work being done?
a)
A student sleeps
b)
A student pushes a locked door that does not move
c)
a student carries his chair into another room
d)
A student sits on the carpet
11.
Which of the following is the best example of work being done.
a)
doing homework
b)
lifting a box
c)
pushing a stationary box
d)
holding a box
12.
Force is a _____ or _______
a)
simple complex
b)
push pull
c)
up down
d)
in out
13.
What is the unit for mass?
a)
Kilogram (Kg)
b)
Newton (N)
c)
Joule (J)
d)
Watt (W)
14.
W=125 J
d=10 m
F=???
d=10 m
F=???
a)
12.5 N
b)
1250 N
c)
0.08 N
d)
135 N
15.
F=200 N
d=50 m
w=??
d=50 m
w=??
a)
4 J
b)
0.25 J
c)
250 J
d)
10,000 J
16.
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
17.
If 360 Joules of work are needed to move a crate a distance of 4 meters, what is the weight of the crate?
a)
1440 N
b)
90 N
c)
0.011 N
d)
14.4 N
18.
If a group of workers can apply a force of 1,000 Newtons to move a crate 20 meters, what amount of work will they have accomplished?
a)
20,000 J
b)
200 J
c)
2,000 J
d)
20 J
19.
If 68 Joules were necessary to move a 4 Newton crate, how far was the crate moved?
a)
272 m
b)
17 m
c)
4.05 m
d)
272 cm
20.
The unit used to measure work is the
a)
Watt
b)
Newton
c)
Joule
d)
meter
21.
Work done = Force x _________
a)
a. distance
b)
b. acceleration
c)
c. velocity
d)
d. speed
22.
For this tug of war, forces are balanced.
a)
The boy in blue is applying more force.
b)
The boy in red is applying more force.
c)
Both boys are applying equal force.
23.
The gravitational force of any object near Earth's surface is ____.
a)
unknown
b)
friction
c)
Newton's first law
d)
9.8 m/s2
24.
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 & Internal
25.
As the skier goes down the hill, ________ energy increases while _______ energy decreases.
a)
Gravitational; Kinetic
b)
Kinetic; Gravitational
c)
Elastic; Kinetic
d)
Kinetic; Elastic
26.
At the bottom of the hill, the skier jumps off of a ramp. The ramp causes the skier to _____.
a)
gain potential energy
b)
lose potential energy
c)
gain kinetic energy
d)
lose elastic energy
27.
During a pull-up, a 90kg man raises himself by 80cm. Calculate the work done in a single pull-up.
a)
720 Joules
b)
72,000 Joules
c)
1,125 Joules
d)
112,500 Joules
28.
Bro A bench presses 145-lbs five times in 20 seconds.
Bro B bench presses 145-lbs five times in 10 seconds.
Bro B bench presses 145-lbs five times in 10 seconds.
a)
Bro A did more work.
b)
Bro B did more work.
c)
Both Bros did the same amount of work.
d)
Bro
29.
Bro A bench presses 145-lbs five times in 20 seconds.
Bro B bench presses 145-lbs five times in 10 seconds.
Bro B bench presses 145-lbs five times in 10 seconds.
a)
Bro A has more power
b)
Bro B has more power
c)
Both Bros have the same power
d)
Bro
30.
The amount of work done depends on:
a)
the size of the force on the object, the distance the object moves
b)
the size of the object, the distance the object moves
c)
the size of the force on the object, the speed of movement
d)
the size of the force on the object, the friction acting upon the object
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