Spring energy review

A spring has a spring constant of 330 N/m.  How far is the spring compressed if 150 N of force are used?

• 2.2 m
• 0.0014 m
• 5.0 m
• 0.45 m

A force of 470 N is applied to stretch a spring which has a spring constant, k=1100 N/m.  How much does the spring stretch past its free length?

• 0.214 m
• 2.34 m
• 0.427 m
• 5.17 X 10^5 m

What force should be applied to compress a spring by 0.013 m if its spring constant is k = 1900 N/m?

• 1880 N
• 24.7 N
• 1900 N
• 0.127 N

Which of the following springs is the stiffest?

• A spring that requires a froce of 2000 N to compress it by 6.8 m.
• A spring that requires a force of 4000 N to stretch it by 9.0 m. 
• A spring that requires a force of 8000 N to compress it by 45 m.  
• A spring that requires a force of 4800 N to stretch it by 14 m.

A graph of force vs. distance for an elastic material is:

• A downward curve

• An upward curve

• A straight line from any point on the x and y axis

• A straight line from the origin

What is the extension of spring D?

• 1mm

• 2mm

• 3mm

• 0mm

A 10-newton force is required to hold a stretched spring 0.20 meter from its rest position. What is the potential energy stored in the stretched spring?

• 1 J
• 2 J
• 5 J
• 50 J

A spring has a spring constant of 330 N/m.  How far is the spring compressed if 15.3 kg are placed on it?

• 2.2 m

• 22 m

• 5.0 m

• 0.45 m

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.

What is the correct procedure to identify an unknown force by using the extension of a spring?

• a) Bounce the unknown weight on a spring and measure the length of the biggest bounce.
• b) Bounce the unknown weight on a spring and add the lengths of the bounces together.
• c) Measure the extension of a spring by adding increasing weights. Draw a trend line on a graph and compare to the extension to the unknown weight.
• d) Measure the extension of a spring by adding pulling increasingly hard. Draw a trend line on a graph and compare how hard you pulled to the unknown weight.