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WorksheetsWork and Power
Total questions: 21
Worksheet time: 11mins
Name
Class
Date
1.
In science, work focuses on force and____ but not concentration.
a)
force
b)
direction
c)
motion
d)
newtons
2.
What is the transfer of energy that occurs when a force is applied over a distance?
a)
work
b)
power
c)
force
d)
motion
3.
What is the unit of measurement for work?
a)
newtons
b)
meters
c)
watts
d)
joules
4.
What is the calculating formula for work?
a)
w=Fd
b)
w=Ft
c)
w=t/d
d)
w=F/t
5.
Calculate work for the following problem: F: 45 N; d: 4m
a)
120 J
b)
150 J
c)
180 J
d)
200 J
6.
Calculate the work for the following problem: F: 30 N; d: 5m
a)
100 J
b)
150 J
c)
100 J
d)
125 J
7.
Calculate the work for the following problem: F:63 N; d: 10m
a)
600 J
b)
630 J
c)
620 J
d)
650 J
8.
T/F: When it comes to forces at an angle, the force and motion go in the same direction.
a)
true
b)
false
9.
T/F: When it comes to force at an angle, the force is both horizontal and vertical.
a)
true
b)
false
10.
T/F: When it comes to force at an angle, the horizontal force is used to calculate work.
a)
true
b)
false
11.
When it comes to lifting an object, a person must overcome____.
a)
force
b)
gravity
c)
work
d)
power
12.
In order to lift an object, the force must be greater than or ____ __the object's force
a)
greater than
b)
lesser than
c)
equal to
d)
the same
13.
What is energy in motion?
a)
potential energy
b)
thermal energy
c)
kinetic energy
d)
conserved energy
14.
What is energy at a stand still?
a)
potential energy
b)
thermal energy
c)
kinetic energy
d)
conserved energy
15.
Doing work on an object____ energy.
a)
increases
b)
decreases
c)
does nothing
d)
transfers
16.
What is the rate at which work is done?
a)
force
b)
work
c)
motion
d)
power
17.
What is the unit of measurement for power?
a)
watts
b)
newtons
c)
meters
d)
joules
18.
What is the formula for power?
a)
p=F/t
b)
p=t/w
c)
p=w/t
d)
p=t/F
19.
Calculate the power for the following problem: w: 253 J; t: 10 s
a)
25.3 W
b)
25.5 W
c)
25.6 W
d)
25.2 W
20.
Calculate the power for the following problem: w: 320 J; 60 s
a)
5.4 W
b)
5.2 W
c)
5.3 W
d)
5.5 W
21.
Calculate the power for the following problem: w=350 J; t:20 s
a)
18.5 W
b)
16.5 W
c)
17.5 W
d)
20.5 W
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