Chapter 7

Question 1

State Hooke’s Law

Answer 1

When an object is stretched, bent or deformed the restoring force is proportional to the displacement from its equilibrium position

Question 2

What is the elastic constant?

Answer 2

The elastic constant is the constant of proportionality between the applied force and the resulting displacement of a given spring

Question 3

What is elasticity?

Answer 3

Elasticity is the ability of a body to resist a distorting influence or stress and to return to its original size and shape when the stress is removed

Question 4

What is simple harmonic motion?

Answer 4

Simple harmonic motion is where the acceleration of a body towards a particular point is proportional to its displacement from that point

Question 5

What is amplitude?

Answer 5

Amplitude is the maximum distance that a body moves from its equilibrium position

Question 6

What is frequency?

Answer 6

Frequency is the number of cycles (or oscillations) the object completes per unit time

Question 7

What is the period?

Answer 7

The period of a particle executing SHM is the time taken to complete one oscillation