Understanding Elasticity and Forces

Front

What is elasticity in materials science?

Back

Elasticity is the ability of a material to return to its original shape after being stretched or deformed.

Front

What is Hooke's Law?

Back

Hooke's Law states that the force exerted by a spring is directly proportional to the amount it is stretched, as long as the elastic limit is not exceeded.

Front

What is the elastic limit of a material?

Back

The elastic limit is the maximum extent to which a material can be stretched without permanently deforming.

Front

What is the formula for calculating elastic force?

Back

The elastic force (F) can be calculated using the formula F = k * x, where k is the spring constant and x is the displacement from the equilibrium position.

Front

What is the spring constant?

Back

The spring constant (k) is a measure of a spring's stiffness, defined as the force required to stretch or compress the spring by a unit length.

Front

What happens to the potential energy in a stretched elastic material?

Back

The potential energy stored in a stretched elastic material is converted to kinetic energy when the material returns to its original shape.

Front

What is the role of gravitational force in bungee jumping?

Back

Gravitational force pulls the bungee jumper downward, causing acceleration towards the ground.

Front

How does the stretching of a bungee cord affect the jumper's speed?

Back

As the bungee cord stretches, it exerts an upward elastic force that opposes the downward gravitational force, causing the jumper to slow down.

Front

What is the difference between elastic and inelastic materials?

Back

Elastic materials return to their original shape after deformation, while inelastic materials do not return to their original shape after the force is removed.

Front

What is the significance of the bungee cord's elasticity?

Back

The elasticity of the bungee cord allows it to stretch and absorb the energy of the falling jumper, preventing injury.