Elasticity in Physics

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What characteristic defines an elastic object?

It can only deform once.

It returns to its original shape after deformation. (correct)

It does not change shape under force.

It breaks easily when stretched.

What does the equation $F = -k riangle x$ represent in terms of a spring's behavior?

The relationship between gravitational force and spring extension.

The relationship between applied force and its effect on a spring.

The force required to break a spring.

The counteracting forces at play in a spring's deformation. (correct)

What happens to the deformation of an elastic object when a greater force is applied?

Deformation remains constant regardless of force.

Deformation decreases with increased force.

Deformation increases proportionally with the applied force. (correct)

Deformation leads to permanent changes in shape.

Which of the following is an example of an elastic object?

A rubber band Signup and view all the answers

In the context of elasticity, what role does the constant of proportionality (k) play?

It indicates the material’s resistance to deformation. Signup and view all the answers

What happens to the elastic force when a spring is stretched beyond its original shape?

It increases with an increase in deformation. Signup and view all the answers

Which statement correctly describes the relationship between the elastic force and the external force applied to a spring?

The elastic force is always opposite in direction to the external force. Signup and view all the answers

In terms of deformation, how is the symbol Δx defined?

It quantifies the difference between the original and deformed shape. Signup and view all the answers

What does the negative sign in the equation $F = -k riangle x$ signify?

The direction of elastic force is opposite to the applied force. Signup and view all the answers

Which of the following materials is considered inelastic?

Steel beam Signup and view all the answers

What is the essential property of elastic materials?

They return to their original shape after removing deforming forces. Signup and view all the answers

Which statement correctly describes the relationship between external force and elastic force acting on a spring?

The elastic force equals the external force in magnitude but acts in the opposite direction. Signup and view all the answers

In the equation $F = -k riangle x$, what does the variable $ riangle x$ represent?

The change in length of the spring from its original position. Signup and view all the answers

Which of the following objects demonstrates elasticity?

A rubber band Signup and view all the answers

What does the negative sign in the equation $F = -k riangle x$ indicate?

Elastic force opposes the direction of the applied external force. Signup and view all the answers

What happens to the elastic force when an external force is applied to a spring?

The elastic force is equal in magnitude but opposite in direction to the external force. Signup and view all the answers

An elastic object can return to its original shape after being deformed.

True Signup and view all the answers

What is represented by the symbol Δx in the context of elasticity?

Extension or deformation of the object. Signup and view all the answers

When a spring is compressed, the elastic force is expressed by the equation $F = -kΔx$, where $k$ represents the ______.

constant of proportionality Signup and view all the answers

Match each elastic object with its common usage:

Hair scrunchies = Holding hair in place Elastic waistband = Providing stretch in clothing Rubber band = Binding objects together Resistance band = Assisting in strength training Signup and view all the answers