Answer Key Grade 5. Practice Test. What is Light? How Light Behaves
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1 Answer Key Grade 5 What is Light? How Light Behaves
2 1. Part A Based on the text and diagram, how many major bands of radiant energy are there? A Incorrect. Look at the Kinds of Radiant Energy diagram. B Incorrect. Look at the Kinds of Radiant Energy diagram. C Correct. The Kinds of Radiant Energy diagram supports this answer. D Incorrect. Look at the Kinds of Radiant Energy diagram. How many of these major bands of radiant energy are invisible? A Incorrect. Look for a clue in the text. B Correct. The text explains that the bands on both sides of visible light are invisible. C Incorrect. Look for a clue in the text. D Incorrect. Look for a clue in the text. 2. Part A Which word is used to describe a series of energy bands? A Incorrect. Frequency describes how closely together waves of light travel B Incorrect. A photon is a tiny invisible particle C Correct. A spectrum is the range of radiant D Incorrect. Wavelength describes the distance Which word is used to describe a particle of light? A Incorrect. This does not describe a particle of light. B Correct. A photon is a tiny invisible particle C Incorrect. A spectrum is the range of radiant D Incorrect. Wavelength describes the distance 3. Part A Which word is used to describe how closely together waves of light travel? A Correct. Frequency describes how closely together waves of light travel. B Incorrect. A photon is a tiny invisible particle C Incorrect. A spectrum is the range of radiant D Incorrect. Wavelength describes the distance Which word is used to describe the distance between peaks in waves of light? A Incorrect. Frequency describes how closely together waves of light travel B Incorrect. A photon is a tiny invisible particle C Incorrect. A spectrum is the range of radiant D Correct. Wavelength describes the distance 4. Which of the following statements about light and sound are true? Choose all that apply. A Incorrect. This statement is false. B Correct. This statement is true. C Correct. This statement is true. D Incorrect. This statement is false. E Correct. This statement is true. F Correct. This statement is true. 1 of 5
3 5. According to the text, what does a light-year measure? A Correct. Light-years measure distance and are often expressed in miles or kilometers. B Incorrect. Time is measured in seconds, minutes, and hours. Find what a light-year measures in the text. C Incorrect. Look back in the passage to find what a light-year measures. D Incorrect. Look back in the passage to find what a light-year measures. 6. Part A Which word best describes the picture of the window shown above? A Incorrect. This word does not describe this B Correct. This word describes this C Incorrect. This word does not describe this D Incorrect. This word does not describe this Which word best describes the picture of the book shown above? A Correct. This word describes this B Incorrect. This word does not describe this C Incorrect. This word does not describe this D Incorrect. This word does not describe this Part C Which word best describes the picture of the vase shown above? C Incorrect. This word does not describe this D Correct. This word describes this 7. Which is an example of reflection? A Correct. This is an example of reflection. B Incorrect. This is an example of a transparent material. This is not an example of reflection. C Incorrect. This is an example of a transparent material. This is not an example of reflection. D Incorrect. This is an example of a transparent material. This is not an example of reflection. 8. Part A What is the main idea of paragraph 5? A Correct. Most of the paragraph is about this B Incorrect. This is a supporting detail, not the C Incorrect. This is a supporting detail, not the D Incorrect. This is a supporting detail, not the Which sentence from the paragraph best supports the correct answer to Part A? A Correct. This sentence states the main idea of the paragraph. B Incorrect. This detail does not best support the main idea of paragraph 5. C Incorrect. This detail does not best support the main idea of paragraph 5. D Incorrect. This detail does not best support the main idea of paragraph 5. A Incorrect. This word does not describe this B Incorrect. This word does not describe this 2 of 5
4 9. Write a paragraph that explains one way reflection and refraction are alike and one way they are different. Scoring Rubric 2 The response strongly shows the ability to summarize and interpret information about reflection and refraction in the text to show one way they are alike and one way they are different. Exemplar: Both refraction and reflection describe what happens when light hits an object. However, refraction describes what happens to light when it passes from one transparent material to another. Reflection describes what happens when light bounces off an object. 1 The response gives limited evidence of the ability to summarize and interpret information about reflection and refraction in the text. The response may include only one way reflection and refraction are alike OR one way they are different. 0 A response gets no credit if it is blank or provides no evidence of the ability to compare and contrast reflection and refraction. 10. Part A On the basis of the Lenses diagram, what causes one lens to spread light out and another to focus light? A Incorrect. The diagram does not show the speed of light. B Incorrect. The diagram does not show this. C Correct. The diagram shows that the lenses have different shapes. D Incorrect. The diagram does not show this. 10. Which paragraph in What is Light best describes what happens in this diagram? A Incorrect. This paragraph is about radiant energy. B Incorrect. This paragraph is about photons. C Correct. This paragraph explains how light moves. D Incorrect. This paragraph is about how light can travel though the nothingness of space. 3 of 5
5 11. You have read two texts about light energy. Summarize the main ideas in each passage and explain how the texts work together to give a more complete understanding of light energy. Be sure to include examples from both texts to support your ideas. Scoring Rubric 4 The response gives full evidence of the ability to summarize the two texts and explain how they complement each other to give a more complete understanding of light energy. The response includes the effective use of supporting evidence from both texts. Responses will vary but should include at least three main ideas for each text, such as: What is Light? Light can be described as tiny, weightless particles or as moving in waves. Light travels in a straight line. Light can bend. Different kinds of light have higher or lower levels of energy. Light travels very, very fast, much faster than sound. How Light Behaves Light behaves differently when it strikes different materials and surfaces. Light can bounce off objects (reflection). Light can bend as it passes from one transparent object to another, like from air to water (refraction). Light cannot pass through opaque objects, which causes shadows. How the texts work together: Both texts include information on how light moves. The first text describes light as particles and waves, but that s not how people normally see light. The second text gives real-world examples that explain why we see what we see around us, which makes it easier to understand what light really is. 3 The response gives sufficient evidence of the ability to summarize the two texts and explain how they complement each other to give a more complete understanding of light energy. The response provides uneven use of supporting evidence, and flaws are present. 2 The response gives partial evidence of the ability to summarize the two texts and explain how they complement each other to give a more complete understanding of light energy. Some of the main ideas in one or both text may be incomplete or missing. The response provides uneven use of supporting evidence, and flaws are present. 1 The response is related to the topic (to summarize the two texts and explain how they complement each other) but provides little or no focus with minimal use of supporting evidence. 0 A response gets no credit if it is vague and/or includes no relevant information from the text to show that the student understands the main ideas in the texts. 4 of 5
6 1. Part A 2. Part A 3. Part A 4. E F Part A Part C Part A 9. Constructed Response 10. Part A 11. Constructed Response 5 of 5
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