Physics Harmonic Motion

When is a pendulum in simple harmonic motion?

• Never

• All the time

• only at large angles

• only at small angles

When is the pendulum at maximum velocity

• At its lowest point

• At its highest point

• It moves at a constant velocity

• It is at rest

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

The number of cycles or oscillation made in one second is defined as

• time taken

• period

• frequency

• amplitude

Tags

NGSS.HS-PS4-1

Given an expression of x = 10 sin (0.25πt) where x in cm, t in second. Which of these answers are true?

• the frequency is 0.125 Hz

• the amplitude is 10 m

• the angular frequency is 0.125 rad s^-1

• at t = 0, x = 10 cm

Tags

NGSS.HS-PS4-1

Given an expression of a SHM

x = 10 sin (11.4t). Calculate the time taken when x=10 cm for the 1st time

• 0.138 s

• 1.24 s

• 11.11 s

• 0.79 s

Tags

NGSS.HS-PS4-1

What is the equation for frequency?

• f = t/n
• f = 1/T
• f = 2 T

Tags

NGSS.HS-PS4-1

For a system in simple harmonic motion, which of the following is the time required to complete a cycle of motion?

• amplitude
• period
• frequency
• revolution

Based on your findings, which equation could best describe the pendulum’s period?

• A

• B

• C

• D