Simple Harmonic Motion

Question 1

Amplitude

Answer 1

Maximum displacement

Question 2

Time Period

Answer 2

Time for one complete oscillation

Question 3

Frequency

Answer 3

Number of oscillations per second

Question 4

Angular frequency

Answer 4

2π x frequency

Question 5

Phase difference

Answer 5

An angular measure of how much one oscillation leads or lags another

Question 6

Simple harmonic motion

Answer 6

When the acceleration is proportional to displacement

Acceleration occurs he the opposite direction to displacement

Question 7

Useful damping

Answer 7

Bridges

Car suspension

Question 8

Damping problems

Answer 8

Anything which requires an oscillator to maintain a fixed ampmitude

Question 9

What is the gradient of a displacement graph equal to?

Answer 9

The velocity

Question 10

Displacement

Answer 10

Distance of a body moved from its equilibrium

Question 11

equation defining simple harmonic motion

Answer 11

a = - (2πf)^2x

Question 12

equations for displacement

Answer 12

x= Acos(2πft) or x= Asin(2πft)

Question 13

equation for Vmax

Answer 13

Vmax = (2πf)A

Question 14

How is the time period related to amplitude of oscillations

Answer 14

Time period and Amplitude are independent

Question 15

Uses of resonance

Answer 15

cooking food in microwaves

Question 16

unwanted resonance

Answer 16

suspension bridges

Question 17

Resonance

Answer 17

occurs when the frequency of oscillations of a driving force is very close to the natural frequency of the driven system; this results in maximum energy transfer to the driven system, leading to very large amplitude oscillations