IB Physics Topic 9.1

A pendulum oscillates as shown. At which of the following positions is the potential energy equal to the total energy?

• A

• B

• C

• Not enough information

A pendulum oscillates as shown. At which of the following positions is the kinetic energy equal to the total energy?

• A

• B

• C

• Not enough information given.

A particle of mass m oscillates with simple harmonic motion (SHM) of angular frequency ω. The amplitude of the SHM is A. What is the kinetic energy of the particle when it is half way between the equilibrium position and one extreme of the motion?

• 1/4*mA²ω²

• 3/8*mA²ω²

• 9/32*mA²ω²

• 1/2*mA²ω²

Tags

NGSS.HS-PS3-2

A pendulum oscillating near the surface of the Earth swings with a time period T. What is the time period of the same pendulum near the surface of the planet Mercury where the gravitational field strength is 0.4g?

• 0.2 T

• 0.6 T

• 1.2 T

• 1.6 T

Tags

NGSS.HS-PS2-4

What is the symbol for maximum displacement of a simple harmonic oscillator?

• x₀

• x

• ω

• a

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

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

The graph shows the variation with time of the displacement of an object undergoing simple harmonic motion. What is the maximum speed of the object? (Hint: the period is 160 ms and the amplitude is 32 mm)

• 39 ms^-1

• 5.0 ms^-1

• 0.20 ms^-1

• 1.3 ms^-1

The graph shows the variation with time of the displacement of an object undergoing simple harmonic motion. When is the resultant force 0 N? (Hint: the period is 160 ms and the amplitude is 32 mm)

• When the acceleration is 0.

• When the displacement is 0.

• When the velocity is 0.

• Never or it wouldn't be oscillating.