Elasticity and Compression

A compressed spring in a toy is used to launch a 5.00-gram ball. If the ball leaves the toy with an initial horizontal speed of 5.00 meters per second, the minimum amount of potential energy stored in the compressed spring was 

• 0.0125 J 
• 0.0250 J 
• 0.0625 J 
• 0.125 J 

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

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

Tags

NGSS.MS-PS3-2

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

A spring with a spring constant (k) of 5 N/m is stretch 0.2 m. The spring force is 

• 1 N
• 25 N
• 5.2 N
• 4.8 N

How far is a spring with k = 9 N/m stretched when a 5 kg mass is attached? 

• 0.55 m
• 5.5 m
• 1.8 m 
• 18 m 

Tags

NGSS.MS-PS2-2

Which of the following graphs represents Hooke's Law

• A
• B
• C
• D

When a bouncing ball hits the ground and squishes, what is the main type of energy that it has?

• Kinetic

• Gravitational

• Elastic

• Chemical

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

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

Which of the following is a true statement regarding springs?

• The higher the value of the spring constant, the stiffer the spring.  
• In Hooke's law, the force exerted by the spring acts in the same direction as displacement.  
• Springs are designed to provide unpredictable variations in force.  
• The force exerted by a spring has a quadratic relationship with the displacement form equilibrium.