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WorksheetsF=KE and Elastic Potential Energy
Total questions: 22
Worksheet time: 46mins
A spring extends 1.5 metres under a load of 10 newtons. What is its spring constant?
0.15 N/m
10 N/m
6.7 N/m
15 N/m
The units for elastic potential energy are...
Joules, J
metres, m
centimetres, cm
kilograms, kg
Which object has elastic potential energy?
a hanging leaf
a burning coal
a rolling ball
a stretched bow
What is the spring constant for the system shown above?
0.1 N
10 N
200 N/m
50 N/m
What is the potential energy stored in this spring when it is stretched to a displacement of 0.1 metres?
1 J
20 J
10 J
5 J
A stretched rubber band represents what type of potential energy?
gravitational potential energy
elastic potential energy
chemical potential energy
kinetic potential energy
Which object has elastic potential energy?
a hanging leaf
a burning coal
a rolling ball
a stretched bow
A stretched rubber band represents what type of potential energy?
gravitational potential energy
elastic potential energy
chemical potential energy
kinetic potential energy
A force of 480 N changes the spring length by 0.25 metres. Calculate the elastic potential energy in Joules.
Elastic Potential Energy = 1/2 x Force x extension length
30 Joules
60 Joules
90 Joules
120 Joules
Leo (700 N) stretches the trampoline mat by 37 cm. Calculate the elastic potential energy he puts into the trampoline mat.
Elastic potential energy = 1/2 X Force X Stretching length
HINT: Stretching length in cm must be converted to metre. 1 cm = 0.01 m
4.79 J
129.5 J
47.9 J
12.76 J
This child is using a slingshot. Does the slingshot have maximum or minimum elastic potential energy?
maximum
minimum
no elastic potential energy
A spring has a spring constant of 450 N/m. How far is the spring compressed if 150 N of force are used?
2.2 feet
3 feet
5.0 feet
0.3 metres
A force of 400 N is applied to stretch a spring which has a spring constant, k=100 N/m. How much does the spring stretch past its free length?
0.4 metres
2.34 metres
4 metres
5.17 metres
What force should be applied to compress a spring by 0.5 metres if its spring constant is k = 1500 N/m?
1880 N
750 N
1500 N
3000 N
A net force of 1400 N acts to stretch an extension spring. How far will the spring stretch if its spring constant is 700 N/m?
1.0 metre
0.5 metre
1.5 metres
2.0 metres
A spring extends 1.5 metres under a load of 10 newtons. What is its spring constant?
0.15 N/m
10 N/m
6.7 N/m
15 N/m
_________ is the unit of Spring Constant
N
N/m
m
A bungee rope has a spring constant of 5N/m. How much must a person weigh in Newtons if we want it to extend (stretch) 10 metres?
20N
22cm
50N
50cm
21N
