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Massachusetts Comprehensive Assessment System

2013, High School Intro Physics

  Question 45: Open-Response  
The diagram below is a simplified representation of the inside of a certain type of camera.
Shows a camera. Three light rays pass through the outer lens of the camera, and converge slightly. They then strike a movable mirror inside the camera, and converge more as they move towards an area labeled “dotted box.”
  1. Identify and describe the wave behavior as the light rays pass through the glass lens.
  2. Identify and describe the wave behavior as the light rays strike the mirror.
  3. Copy the dotted box from the camera diagram into your Student Answer Booklet. Draw what must happen inside the box for light ray 2 to strike the viewfinder. Be sure to include the following:
    • either a lens or a mirror that is labeled
    • the path of light ray 2
    • a line normal to the surface where light ray 2 strikes

Scoring Guide and Sample Student Work
Select a score point in the table below to view the sample student response.

ScoreDescription
4 The response demonstrates a thorough understanding of the basic principles of reflection and refraction of waves. The response correctly identifies and clearly describes the wave behaviors as the light rays pass through the glass lens and strike the mirror. The response includes a correct sketch of the inside of the dotted box when light ray 2 strikes the viewfinder.
4
3
The response demonstrates a general understanding of the basic principles of reflection and refraction of waves.
2
The response demonstrates a limited understanding of the basic principles of reflection and refraction of waves.
1
The response demonstrates a minimal understanding of the basic principles of reflection and refraction of waves.
0 Response is incorrect or contains some correct work that is irrelevant to the skill or concept being measured.

Note: There are 2 sample student responses for Score Point 4.

High School Intro Physics

Question 12: Electromagnetism
Question 23: Motion and Forces
Question 32: Motion and Forces
Question 44: Heat and Heat Transfer
Question 45: Waves and Radiation

Return to the MCAS 2013 Student Work Directory



Last Updated: May 15, 2012
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