Waves and Sound Practice Tests

These Grade 11 Science practice tests examine wave properties, frequency, wavelength, amplitude, sound, resonance, the Doppler effect, interference, standing waves, electromagnetic waves, and experimental analysis.

Skills covered

  • Using \(v=f\lambda\) and \(T=1/f\) to connect wave speed, frequency, wavelength, and period
  • Explaining sound pitch, loudness, intensity, echoes, resonance, and the Doppler effect
  • Analyzing reflection, refraction, diffraction, interference, polarization, nodes, antinodes, and harmonics
  • Distinguishing mechanical and electromagnetic waves and applying boundary conditions
  • Interpreting wave experiments, graphs, repeated trials, uncertainty, and systematic error

How to use these practice tests

Identify the wave type and medium first. Write the relevant relationship, keep units consistent, and connect the mathematical result to the physical behavior of the wave.

For more Grade 11 Science practice, return to the Grade 11 Science category.

3. Test

Grade 11 Waves and Sound Practice Tests

Practice Grade 11 Science questions about wave properties, sound, resonance, interference, standing waves, electromagnetic waves, and experimental analysis.

Choose the best answer. Identify the medium and wave type, use v=fλ, track units, and explain interference, resonance, and experimental evidence.

10 Questions
0/10 Questions0 %
Correct 0
Incorrect 0
Unanswered 10
1. QuestionMultiple choice

What happens when two waves overlap in phase?

Please select an answer first.

Correct answer: A

The correct answer is Constructive interference increases the resultant amplitude.

  1. Identify the wave model: Determine the medium, wave type, frequency, wavelength, amplitude, and direction described in the question.
  2. Apply the wave relationship: In-phase displacements add, so constructive interference produces a larger resultant amplitude.
  3. Check units and physical meaning: The correct answer is Constructive interference increases the resultant amplitude.

In-phase displacements add, so constructive interference produces a larger resultant amplitude.

2. QuestionMultiple choice

What happens when two equal waves overlap exactly out of phase?

Please select an answer first.

Correct answer: B

The correct answer is Destructive interference can produce zero resultant displacement.

  1. Identify the wave model: Determine the medium, wave type, frequency, wavelength, amplitude, and direction described in the question.
  2. Apply the wave relationship: Equal opposite displacements cancel at the point of overlap, although the waves continue afterward.
  3. Check units and physical meaning: The correct answer is Destructive interference can produce zero resultant displacement.

Equal opposite displacements cancel at the point of overlap, although the waves continue afterward.

3. QuestionMultiple choice

What is diffraction?

Please select an answer first.

Correct answer: C

The correct answer is The bending and spreading of waves around openings or obstacles.

  1. Identify the wave model: Determine the medium, wave type, frequency, wavelength, amplitude, and direction described in the question.
  2. Apply the wave relationship: Diffraction is especially noticeable when an opening or obstacle is comparable to the wavelength.
  3. Check units and physical meaning: The correct answer is The bending and spreading of waves around openings or obstacles.

Diffraction is especially noticeable when an opening or obstacle is comparable to the wavelength.

4. QuestionMultiple choice

What is refraction?

Please select an answer first.

Correct answer: D

The correct answer is A change in wave direction caused by a change in speed between media.

  1. Identify the wave model: Determine the medium, wave type, frequency, wavelength, amplitude, and direction described in the question.
  2. Apply the wave relationship: Refraction occurs when wave speed changes across a boundary; frequency remains set by the source while wavelength adjusts.
  3. Check units and physical meaning: The correct answer is A change in wave direction caused by a change in speed between media.

Refraction occurs when wave speed changes across a boundary; frequency remains set by the source while wavelength adjusts.

5. QuestionMultiple choice

What happens to light frequency when it enters a new medium?

Please select an answer first.

Correct answer: A

The correct answer is It remains the same while speed and wavelength can change.

  1. Identify the wave model: Determine the medium, wave type, frequency, wavelength, amplitude, and direction described in the question.
  2. Apply the wave relationship: The source fixes the oscillation rate, so frequency stays constant at a boundary while (v=f\lambda) determines the new wavelength.
  3. Check units and physical meaning: The correct answer is It remains the same while speed and wavelength can change.

The source fixes the oscillation rate, so frequency stays constant at a boundary while (v=f\lambda) determines the new wavelength.

6. QuestionMultiple choice

What is a standing wave?

Please select an answer first.

Correct answer: B

The correct answer is A pattern formed by interference of waves traveling in opposite directions.

  1. Identify the wave model: Determine the medium, wave type, frequency, wavelength, amplitude, and direction described in the question.
  2. Apply the wave relationship: Opposite-traveling waves can interfere to create stationary nodes and antinodes.
  3. Check units and physical meaning: The correct answer is A pattern formed by interference of waves traveling in opposite directions.

Opposite-traveling waves can interfere to create stationary nodes and antinodes.

7. QuestionMultiple choice

What is a node in a standing wave?

Please select an answer first.

Correct answer: C

The correct answer is A point of continual zero displacement.

  1. Identify the wave model: Determine the medium, wave type, frequency, wavelength, amplitude, and direction described in the question.
  2. Apply the wave relationship: Destructive interference is fixed at a node, so the medium there remains at equilibrium.
  3. Check units and physical meaning: The correct answer is A point of continual zero displacement.

Destructive interference is fixed at a node, so the medium there remains at equilibrium.

8. QuestionMultiple choice

What is an antinode in a standing wave?

Please select an answer first.

Correct answer: D

The correct answer is A point of maximum oscillation amplitude.

  1. Identify the wave model: Determine the medium, wave type, frequency, wavelength, amplitude, and direction described in the question.
  2. Apply the wave relationship: Constructive interference is fixed at an antinode, producing the largest oscillation amplitude.
  3. Check units and physical meaning: The correct answer is A point of maximum oscillation amplitude.

Constructive interference is fixed at an antinode, producing the largest oscillation amplitude.

9. QuestionMultiple choice

Why can thin-film colors result from interference?

Please select an answer first.

Correct answer: A

The correct answer is Reflected waves from different surfaces can combine constructively or destructively.

  1. Identify the wave model: Determine the medium, wave type, frequency, wavelength, amplitude, and direction described in the question.
  2. Apply the wave relationship: Path differences and phase changes cause some wavelengths to reinforce and others to cancel.
  3. Check units and physical meaning: The correct answer is Reflected waves from different surfaces can combine constructively or destructively.

Path differences and phase changes cause some wavelengths to reinforce and others to cancel.

10. QuestionMultiple choice

What is polarization evidence of for a wave?

Please select an answer first.

Correct answer: B

The correct answer is It indicates that the wave has transverse oscillations.

  1. Identify the wave model: Determine the medium, wave type, frequency, wavelength, amplitude, and direction described in the question.
  2. Apply the wave relationship: Only transverse waves can be restricted to a particular oscillation direction through polarization.
  3. Check units and physical meaning: The correct answer is It indicates that the wave has transverse oscillations.

Only transverse waves can be restricted to a particular oscillation direction through polarization.