Simple Harmonic Motion

In the context of this video, what is meant by a "model"?

• A person who displays clothing

• A physical representation

• An equation

• A graph

Which two trigonometric functions are used for basic simple harmonic motion equations?

• Tangent and cotangent

• Secant and cosecant

• Cosine and sine

• Arcsine and arccosine

When t = 0, what is true about the cosine function in harmonic motion?

• It starts at its minimum value

• It starts at zero

• It starts at its maximum value

• It starts at a negative value

When t = 0, what is true about the sine function in harmonic motion?

• It starts at its maximum value

• It starts at zero

• It starts at its minimum value

• It starts at a positive value

In the equation d = A sin(ωt), what does 'A' represent?

• Angular frequency

• Amplitude

• Time

• Displacement

How is the period (T) related to angular frequency (ω) in harmonic motion?

• T = ω

• T = 2π/ω

• T = ω/2π

• T = 1/ω

What is the equation for the second example? (pi for π )

(a)  

In the second example, why was a cosine equation used instead of a sine equation?

• Because the period was 10

• Because the amplitude was 2

• Because the initial displacement was at a maximum

• Because it's always preferable to use cosine