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WorksheetsHooke's Law
Total questions: 10
Worksheet time: 10mins
Name
Class
Date
1.
If F is force, k is spring constant and x is extension, Hooke's Law tells us that:
a)
F=k/x
b)
x=Fk
c)
k=Fx
d)
F=kx
2.
Hooke's Law fails when a material reaches its:
a)
breakdown
b)
elastic limit
c)
limit of proportionality
d)
fracture stress
3.
A graph of extension against force for an elastic material is:
a)
A downward curve
b)
An upward curve
c)
A straight line from any point on the x and y axis
d)
A straight line from the origin
4.
A stiff material has a:
a)
high spring constant
b)
low spring constant
c)
spring constant of any value
d)
spring constant which is difficult to predict
5.
A spring has a spring constant of 5N/cm. What is its extension when loaded with 15N?
a)
4cm
b)
5cm
c)
3m
d)
3cm
6.
A spring extends 1.5m under load 10N. What is its spring constant?
a)
0.15N/m
b)
10N/m
c)
6.7N/m
d)
15N/m
7.
A 25,000 N Car is supported by 4 springs. If each spring is deflected by 0.040 m what is the spring constant? (Think about how much weight each spring holds up!)
a)
160,000 N /m
b)
620,000 N/m
c)
630,000 N/m
d)
120,000 N/m
8.
A net force of 430 N acts to stretch an extension spring. How far will the spring stretch if its spring constant is 700 N/m?
a)
43.9
b)
0.307 m
c)
1.63 m
d)
0.614 m
9.
Which statement most accurately represents Hooke's Law?
a)
Extension of a spring is proportional to the force applied.
b)
Extension of a spring is proportional to the number of coils.
c)
Extension of a spring is inversely proportional to the force applied.
d)
Thickness of a spring wire is proportional to the force applied.
10.
Spring constant is measured in
a)
N
b)
N/m
c)
m
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