Forces & Elasticity Quiz (Foundation)

What type of behavior is exhibited by a material that returns to its original shape and size after the forces are removed?

• Inelastic deformation

• Plastic deformation

• Elastic deformation

• Permanent deformation

How many forces are generally needed to stretch an object?

• One force

• Two forces

• Three forces

• Four forces

What is the term for the deformation that occurs when an object does not return to its original shape or size after the forces are removed?

• Elastic deformation

• Temporary deformation

• Inelastic deformation

• Reversible deformation

According to Hooke's law, what is the relationship between force and extension for a spring?

• Force is inversely proportional to extension

• Force is equal to the spring constant minus extension

• Force is equal to the spring constant times extension

• Force is the square of the spring constant times extension

Which example involves compressing an object?

• A climber hangs from a rope

• A plank is used to make a bridge across a ditch

• A person sits on a stool

• A spring is stretched to its limit of proportionality

According to the Hooke's Law, what happens to the extension of a spring if the force applied to the spring is doubled?

• A) The extension remains the same

• B) The extension is halved

• C) The extension is doubled

• D) The extension increases by a factor of four

What is a risk that needs to be assessed when conducting the spring experiment?

• A) The spring may break

• B) The ruler may snap

• C) The mass hanger may corrode

• D) The clamp may loosen

What type of relationship between force and extension is described by Hooke's Law?

• Non-linear relationship

• Linear relationship

• Exponential relationship

• Inverse relationship

What happens when a material is stretched past its limit of proportionality?

• The material returns to its original size and shape.

• The material does not return to its original size and shape and shows some permanent extension.

• The material breaks immediately.

• The material does not stretch at all.

What is meant by "elastic deformation"?

• The material does not go back to its original size and shape when the force is removed.

• The material goes back to its original size and shape when the force is removed.

• The material shows permanent deformation when the force is removed.

• The material cannot be deformed.