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Energy Review Monday

Energy Review Monday. A clear glass beaker is filled half full of water. A pencil is placed in the beaker, and one end rests against the top edge of the beaker. When viewed from the side, the pencil appears to be broken. The bottom of the pencil does not line up with the top. There

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Energy Review Monday

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  1. Energy ReviewMonday

  2. A clear glass beaker is filled half full of water. A pencil is placed in the beaker, and one end rests against the top edge of the beaker. When viewed from the side, the pencil appears to be broken. The bottom of the pencil does not line up with the top. There appears to be a break at the place where the water and air meet. What causes this to happen? A. Light changes direction in the water. B. Light breaks the pencil. C. Light is absorbed by the pencil. D. Light is reflected by the air.

  3. Jake was cleaning a swimming pool. Each time he tried to sweep the leaves, the brush handle appeared to bend in the water. What caused the brush handle to appear bent? A. Since the water is bouncing the light waves, it is a reflection. B. Since the water is bending the light waves, it is a refraction. C. Since the water is moving the light waves, it is a rotation. D. Since the water is shimmering, it is a translation.

  4. The arrows in the diagrams below represent light. Which diagram BEST shows how a glass mirror would reflect light? A B C D

  5. Which of the illustrations is a closed circuit? A B C D

  6. Today, scientists know that vibrations create sound and that light travels in waves. Which of the following statements is true about how scientists validate theories? A. Scientists validate theories by discussing their weaknesses. B. Scientists validate theories by publishing a book. C. Scientists validate theories by purchasing materials. D. Scientists validate theories by repeated investigations.

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