Elasticity and Hooke's Law Quiz

What happens when a force is applied to an object?

• It changes color.

• It always breaks.

• It can compress, stretch, or bend.

• It becomes invisible.

What is required for an object to stay still when a force is applied?

• No force is needed.

• Only one force is needed.

• More than one force is needed.

• The object must be very heavy.

What is elastic deformation?

• When an object changes color.

• When an object returns to its original shape after forces are removed.

• When an object breaks into pieces.

• When an object becomes heavier.

What is inelastic deformation also known as?

• Thermal deformation

• Magnetic deformation

• Plastic deformation

• Elastic deformation

What does the spring constant (K) measure?

• The color of the spring

• The weight of the spring

• The force needed to stretch the spring by one meter

• The temperature of the spring

What is the relationship between force and extension in a spring?

• They are directly proportional.

• They are unrelated.

• They are inversely proportional.

• They are equal.

What is Hooke's Law?

• Force is directly proportional to extension.

• Force is inversely proportional to extension.

• Force is equal to mass times acceleration.

• Force is unrelated to extension.

What happens at the elastic limit?

• The object will not return to its original shape.

• The object becomes invisible.

• The object changes color.

• The object becomes heavier.

What is the symbol for force in the force-extension equation?

• E

• K

• F

• X

What does the graph of force against extension show?

• A horizontal line

• A curved line

• A straight line through the origin

• A zigzag line