Simple Harmonic Motion Retake/ Make Up

When is a pendulum in simple harmonic motion?

• Never

• All the time

• only at large angles

• only at small angles

What is the definition of SHM?

• periodic motion without loss of energy in which the acceleration of a body is directly proportional to its displacement and is directed towards the equilibrium position but in opposite direction of the displacement.

• periodic motion without loss of energy in which the acceleration is directly proportional to its velocity and is directed towards the equilibrium position but in opposite direction of the velocity.

• periodic motion without loss of energy in which the acceleration of a body is inversely proportional to its displacement

• periodic motion without loss of energy in which the angular frequency is directly proportional to its displacement and is directed towards the equilibrium position but in opposite direction of the displacement.

Position at which the body would come to rest if it were to lose all of its energy refers to

• equilibrium position

• maximum displacement / amplitude

• periodic position

• good position

A very large pendulum driven clock has a 10 m long arm with a heavy mass on the end.  It is pulled back less than 10⁰ and released.  The time that is closest to the time that it first reaches the equilibrium point is?

• π/10
• π/5
• π/4
• π/2

The graph in FIGURE 1 shows the relationship between the acceleration, a and its displacement, x for an object of mass 2 kg which is in simple harmonic motion. Determine the frequency of oscillation.

• 1.6 Hz

• 1.26 Hz

• 0.20 Hz

• 5.00 Hz

The diagram shows two sinusoidal waveforms.

At time t = 0 the waves are in phase. At the dotted line, t = 18 s.

At which time is the phase difference between the two oscillations ⅛ of a cycle?

• 8.0s

• 4.5s

• 4.0s

• 9.0s

A signal has a frequency of 2.0 MHz.What is the period of the signal?

• 5μs

• 200ns

• 500ns

• 2μs

The frequency of a certain wave is 500 Hz and its speed is 340 ms^–1.What is the phase difference between the motions of two points on the wave 0.17 m apart?

• π rad

• π/4 rad

• π/2 rad

• 3π/4 rad

What is the phase difference between two points 30cm apart if the wavelength is 1.5m?

• 1.26 rad

• 126 rad

• 1.25663 rad

• 31 rad

What is the phase difference between points O and D?

• zero

• 2π

• π

• π/2