Hookes Law and Newtons 2nd Law

According to Hooke's law; Force is equal to -

• Spring Constant × Extension

• Spring Constant ÷ Extension

• Spring Constant + Extension

_________ is the unit of Spring Constant

• N

• N/m

• m

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 m

• 2.34 m

• 4 m

• 5.17 m

What force should be applied to compress a spring by 0.5m if its spring constant is k = 1500 N/m?

• 1880 N

• 750 N

• 1500 N

• 3000 N

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.  

Tags

NGSS.HS-PS2-1

Which of the following springs is the stiffest?

• A spring that requires a force of 2000 N to compress it by 5 m.

• A spring that requires a force of 4000 N to stretch it by 10.0 m.

• A spring that requires a force of 2400 N to compress it by 4m.

• A spring that requires a force of 4800 N to stretch it by 12 m.

A force of F=500 N is applied to extend a spring. What is the displacement x of the spring if its spring constant is k= 500 N/m?

• 0.1 m

• 1 m

• 1000 m

• 100m

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

• 0.5m

• 1.5 m

• 2.0 m

The graph shows the relationship between force and extension as a spring is extended. What is the name of point A?

• Point A is the optimum force.

• Point A is the limit of extension.

• Point A is the limit of force.

• Point A is the limit of proportionality

If a spring is extended beyonds it elastic limit, what two things does this mean for the spring?

• The spring will no longer return to its original length.

• The spring will no longer obey Hookes Law.

• The spring will no longer extend.

• The spring will bounce back to its original length.