Simple Harmonic Motion Review

A block of mass 0.5kg on a horizontal surface is attached to a horizontal spring of negligible mass and spring constant 50N/m. The other end of the spring is attached to a wall, and there is negligible friction between the block and the horizontal surface. When the spring is unstretched, the block is located at x=0m. The block is then pulled to x=0.3m

and released from rest so that the block-spring system oscillates between x=−0.3m and x=0.3m. What is the magnitude of the acceleration of the block and the direction of the net force exerted on the block when it is located at x=0.3m?

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Tags

NGSS.HS-PS2-1

In any system in SHM, the restoring force acting on the mass in the system is proportional to

• the displacement

• the length of the pendulum

• the mass

• the frequency

The graph shows the variation with time of the displacement of an object undergoing simple harmonic motion. At which of the following time values is kinetic energy zero?

• 0 ms

• 40 ms

• 80 ms

• 100 ms

An object is undergoing Simple Harmonic Motion and its position is given by x = 2π cos (5t). What is the amplitude of the object’s motion?

• π/4

• π/2

• π

• 2π

• 4π

Tags

NGSS.HS-PS4-1

An object is undergoing Simple Harmonic Motion and its position is given by x = 2π cos (5t).1.      At which of these points in time is the object at its amplitude?

• 0 s

• π/10 s

• π/8 s

• π/4 s

• π/2 s

What is the equation for the position of the object?

Tags

NGSS.HS-PS4-1

What is the defining equation for simple harmonic motion?

• x(t) = A * cos(ωt - φ)

• x(t) = A * cos(ωt + φ)

• x(t) = A * sin(ωt + φ)

• x(t) = A * tan(ωt + φ)

What is the restoring force in simple harmonic motion?

• Restoring force is constant and does not depend on displacement.

• Restoring force is inversely proportional to the displacement.

• Restoring force is proportional to the displacement and acts towards the equilibrium position.

• Restoring force is always directed away from the equilibrium position.

What is the relationship between the period and frequency of a simple harmonic oscillator?

• Period and frequency are unrelated.

• Period and frequency are directly proportional.

• Period and frequency are constant.

• Period and frequency are inversely proportional.

Explain the concept of amplitude in simple harmonic motion.

• Amplitude is the time taken for one complete oscillation in simple harmonic motion.

• The amplitude in simple harmonic motion is the maximum displacement of an oscillating object from its equilibrium position.

• Amplitude is the frequency of the oscillation in simple harmonic motion.

• Amplitude is the total distance traveled by the object in simple harmonic motion.

Tags

NGSS.HS-PS4-1