Energy Basics Quiz

A spring has a spring constant of 450 N/m. How far is the spring compressed if 150 N of force are used?

• 2.2 m

• 3m

• 5.0 m

• 0.3 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.  

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 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

Calculate the force a spring with a spring constant of 16 N/m that is compressed by 0.5 m will exert.

• 15.5 N

• 32 N

• 8 N

• 16 N

When a pendulum swings, at which point is kinetic energy highest?

• 1
• 2
• 3
• 4

When a pendulum swings, at which point is potential energy at its greatest?

• 1
• 2
• 3
• 4

How much kinetic energy (K) does a baseball with a mass of 0.143 kg have if it is travelling at a velocity of 41.1 m/s?

• 120.8 joules

• 89.7 joules

• 108.3 joules

• 156.6 joules