Hooke's Law and Elastic Energy

Which object has elastic potential energy?

• a hanging leaf

• a burning coal

• a rolling ball

• a stretched bow

Tags

NGSS.MS-PS3-2

When will a spring have maximum potential energy?

• At the equilibrium position

• When the displacement is at a maximum (either compression or elongation)

• When the spring is stretched to its maximum only

• When the spring is compressed to its maximum only

Which position shows the spring with maximum elastic potential energy?

• A
• B
• C
• D

Which of the following would have a large spring constant?

• A spring that is stretched to its maximum displacement

• A spring that is at its equilibrium position

• A spring that is very thin and stretchy

• A spring that is very stiff and strong

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 meters?

• 1 J

• 20 J

• 10 J

• 5 J

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 5-newton force causes a spring to stretch 0.2 meter. What is the potential energy stored in the stretched spring?

• 1 J
• 0.5 J
• 0.2 J
• 0.1 J

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

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 spring with k=73 N/m is compressed 70 cm.  An object of mass 4 kg is attached to one end of the compressed spring.  What is the acceleration of the object at the moment the spring is released?  

• .078 m/s/s
• 0.17 m/s/s
• 13 m/s/s
• 1.3 X 10^5 m/s/s

Tags

NGSS.HS-PS2-1