Science-Power Up to STAAR Science p.9 and 10 (10 Qs)

Which diagram best represents reflection?

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A student drew color circles on a piece of paper and placed it behind a glass jar half full of water. Why do the colored circles in the lower part of the jar appear larger than the circles in the upper part?

• Light rays are refracted when they travel through water.

• Light rays are reflected when they travel through the top of the jar.

• Light rays travel in a straight line when they go through water.

• Light rays disappear when they travel through water.

Students are given examples of light energy and are asked to sort them into two categories. The results are shown above. The objects in column B are examples of--

• refraction

• absorption

• reflection

• radiation

Which of the following correctly identifies how light travels?

• Light travels in waves and vibrates

• Light travels in straight lines called rays

• Light travels in a back and forth motion.

• Light travels in a spinning motion.

Which object absorbs the most light?

• white shirt

• mirror

• black shirt

• water

English philosopher Roger Bacon invented the magnifying glass, also known as a hand lens, in the year 1250. A magnifying glass has a convex lens which is used to produce a magnified image of an object. Which answer choice best explains how the convex lens work to magnify an object?

• The light strikes the convex lens and reflects light.

• The light transmits through the convex lens and refracts light.

• The light is absorbed int he convex lens.

• The convex lens makes the light brighter.

students shine a flashlight through three index cards with a hole in each. The index cards are lined up and placed vertically on the table. The students notice the light can be seen through all the index cards. What does this experiment prove about the path light travels?

• Light travels thought every type of matter.

• Light travels in a straight path.

• Light bends though every type of matter.

• Light does not travel.

A group is experiments with light and collects data on the chart below. Which example on the chart reflects the most light?

• glass window

• tissue paper

• aluminum foil

• black fabric

Students are learning about light energy and refraction. They set up an experiment like the one shown below and observe the spoon from the side of each glass. Which questions were the students most likely trying to answer?

• Does the temperature of a liquid affect refraction?

• Does the temperature of a liquid affect reflection?

• Can light pass through tea?

• Can tea absorb light?