Revision for Topic 7

A spring with spring constant 16 N/m is compressed by 0.5 m. How much energy is stored in the spring?

• 1 J

• 0.25 J

• 2 J

• 16 J

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

Elastic potential energy is energy stored in an object, such as a spring, due to the object being stretched or compressed. In which position is it most likely that the spring has lost its elastic potential energy?

• W

• Y

• X

• Z

At which point does the ball has the greatest gravitational potential energy (GPE)?

• A

• G

• D

• C

• G

Tags

NGSS.HS-PS2-4

How could you increase the gravitational potential energy of an object without changing its mass and gravity?

• Make the object larger

• Lower the object towards the ground

• Raise the object farther off the ground

• Allow the object to roll on the ground

Tags

NGSS.MS-PS3-2

What potential energy is this graph representing?

• Electric

• Elastic

• Magnetic

• Gravitational

Hooke's Law fails when a material reaches its:

• breakdown
• elastic limit
• end of tether
• fracture stress

What Quantity can you calculate from the graph and give the magnitude of that quantity.  

• distance 4.5 m
• Force 15 N
• spring constant 20 N/m
• spring constant 200 N/m

Tags

NGSS.HS-PS2-1

An unstretched spring has a length of 0.10 meters. When the spring is stretched by a force of 16 newtons, its length is increased to 0.18 meters. What is the spring constant of this spring? 

• 0.89 N/cm 
• 2.0 N/cm 
• 1.6 N/cm 
• 1.8 N/cm

This spring has a constant of 80 N/m.  What is the elastic potential energy stored in the spring?  The dotted green line represents the spring's equilibrium position and the green vector is displacement.

• Energy is conserved, it cannot be stored.
• 5 N
• 20 N
• 40 N

Tags

NGSS.HS-PS3-1

Which position shows the spring with maximum elastic potential energy?

• A
• B
• C
• D