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WorksheetsGr 8 work done
Total questions: 10
Worksheet time: 6mins
Name
Class
Date
1.
what is the product of force and displacement?
a)
work
b)
power
c)
energy
2.
what is the unit of work?
a)
Newton
b)
Joule
c)
Watt
d)
meter
3.
what is the formula needed to solve for work?
a)
w=f/d
b)
w= fd
c)
w=f+d
4.
what is the value of the earth's gravity in m/s^2
a)
9.2
b)
9.8
c)
9.3
d)
9.0
5.
which of the following shows greatest work done?
a)
sleeping
b)
watching TV
c)
doing the laundry
6.
how much work done is applied when you lift a 2 N bag at a distance of 2 m? (work= F x D)
a)
4 J
b)
3 J
c)
5 J
d)
no work done
7.
what is the weight of a 4 kg bag? ( Weight=mg)
a)
39.2 N
b)
38.2 N
c)
33.2 N
d)
none of the given
8.
what is the value of the mass?
a)
15 kg
b)
100 N
9.
what is the value of the force?
a)
100 N
b)
15 kg
10.
what is the value of the acceleration?
a)
6.67
b)
67.6
c)
1500
d)
115
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