IB Physics Topic 4

X and Y are two points on the surface of water in a ripple tank. A source of waves of constant frequency begins to generate waves which then travel past X and Y, causing them to oscillate. What is the phase difference between X and Y?

• 45°
• 135°
• 180°
• 270°

The four graphs represent a progressive wave on a stretched string.
Graphs A and B show how the displacement d varies with distance x along the string at one instant. Graphs C and D show how the displacement d varies with time t at a particular value of x.
The labels on the graphs are intended to show the wavelength λ, the period T and the amplitude a of the wave, but only one graph is correctly labelled. Which graph is correctly labelled? 

• A
• B
• C
• D

Tags

NGSS.HS-PS4-1

Which graph correctly shows how the acceleration a of a particle undergoing SHM varies with its displacement x from its equilibrium position? 

• A
• B
• C
• D

For a system executing simple harmonic motion, the restoring force acting on the system is 

• proportional to the displacement of the system from equilibrium.
• amplitude of oscillation. 
• elastic potential energy. 
• frequency of oscillation. 

Which of the following is NOT required for a simple pendulum undergoing simple harmonic oscillation?

• a large spring constant
• gravitational force
• a small amplitude
• a massless string

An object is attached to a vertical spring and bobs up and down between points A and B.  Where is the object located when its kinetic energy is a minimum?

• at either A or B
• midway between A and B
• one-third of the way between A and B
• one-fourth of the way between A and B

An amusement park ride has a frequency of 0.064 Hz. What is the ride’s period?

• 0.064 sec
• 6.4 sec
• 2pi / 0.064
• 15.625 sec

Tags

NGSS.HS-PS4-1

The wave's amplitude can be determined by measuring the distance between point ______ and point ______.

• A & B
• A & E
• C & E
• B & D

A child swings on a playground swing.  How many times does the child swing through the swing's equilibrium position during the course of a single period of motion?

• 4
• 3
• 2
• 1

In simple harmonic motion, the displacement is maximum when the: 

• acceleration is zero 
• velocity is maximum 
• velocity is zero 
• kinetic energy is maximum 

Tags

NGSS.HS-PS3-2