Elasticity

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?

• 0.5m

• 1.5 m

• 2.0 m

• 1.0 m

Which word describes an object that will return to its original shape when forces are removed?

• Plastic

• Inelastic

• Elastic

A spring extends elastically by 10 cm when a force of 20 N is applied to it. What force would be needed to extend the spring by 5 cm?

• 40 N

• 10 N

• 5 N

A spring extends elastically by 0.1 m when a force of 2 N is applied. What is the value of its spring constant?

• 0.2

• 0.05

• 20

How might the shape of an object change if forces act away from each other in a straight line?

• It might extend

• It might compress

• It might bend

How might the shape of an object change if forces act towards each other in a straight line?

• It might extend

• It might compress

• It might bend

Which word describes an object that will not return to its original shape when forces are removed?

• Linear

• Inelastic

• Elastic

What is another name for the limit of proportionality?

• Plastic limit

• Elastic limit

• Inelastic limit

What is the name for energy stored by a stretched spring?

• Elastic potential energy

• Gravitational potential energy

• Kinetic energy

A spring with a spring constant of 500 N/m is compressed by 0.2 m. What is the potential energy stored in the spring?

• 10 J

• 20 J

• 25 J

• 30 J

Tags

NGSS.MS-PS3-2