Lesson 8 Mini-Quiz Review 6th Grade

What are the three ways we know that light can interact with objects and materials?

• Scattered, Reflected, and Bounced Back

• Reflected (Scattered), Transmitted, and Absorbed

• Reflected (Scattered), Absorbed, and Heated

• Reflected (Scattered), Absorbed, and Bounced Back

Tags

NGSS.MS-PS4-2

In class you used light to heat two beakers of water. If all of the light that reached the beakers was scattered or reflected, how would that affect the temperature of the water?

• The temperature of the water would increase.

• The temperature of the water would decrease.

• The temperature of the water would not be affected.

• The temperature of the water is not affected by light.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS1-4

In your investigation of what happens when light shines on dark and clear objects, how did the amount of light that was reflected and transmitted relate to the amount of heating of the water?

• The less light reflected and transmitted, the warmer the beaker got.

• The more light reflected and transmitted, the warmer the beaker got.

• The amount of reflected and transmitted light had no affect on how warm the beaker got.

• The less light reflected and transmitted, the cooler the beaker got.

Tags

NGSS.MS-PS4-2

NGSS.MS-PS3-4

NGSS.MS-PS1-4

Your investigation showed that clear water transmitted and reflected more light. In the colored water beaker, some of the light was neither reflected nor transmitted. Instead, it was absorbed which made something happen. What effect did the absorbed light have on the colored water?

• The temperature of the colored water increased because it absorbed light.

• Air bubbles were formed because of the absorbed light.

• The temperature of the colored water decreased because it absorbed light.

• The colored water appeared darker when it absorbed the light rays.

Tags

NGSS.MS-PS4-2

NGSS.MS-PS3-4

NGSS.MS-PS1-4

NGSS.MS-PS3-5

According to the above model, how does the light behave when it hits an object?

• The light is reflected.

• The light is absorbed.

• The light is transmitted.

• All of the above.

Tags

NGSS.MS-PS4-2

If we replaced the eyes at Positions A and B with light sensors, in which position would you predict a higher reading?

• Position B would have a higher reading because it had some reflected light.

• Position A would have a higher reading because most of the light is transmitted.

• Position A would have a higher reading because some of the light is absorbed by the object.

• Position B would have a higher reading because some of the light is absorbed by the object.

Tags

NGSS.MS-PS4-2

In class you developed a mathematical model that explains the difference in the temperature change in the two beakers from your investigation: Total light hitting an object = scattered/reflected light + transmitted light + absorbed light. You shine 6000 lux of light on an object. The light sensor shows that it reflected 1500 lux of light and transmitted 3500 lux of light. How much light was absorbed? What effect will that most likely have on the object?

• The object absorbed 1000 lux of light. The object would cool down quickly.

• The object absorbed 1000 lux of light. The object would get warmer.

• The object absorbed 5000 lux of light. The object would get warmer.

• The object absorbed 5000 lux of light. The object would cool down quickly.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS1-4

NGSS.MS-PS3-5

Almost all of the electricity people use to light lamps, to keep food cold in refrigerators, or to watch television is generated by a machine called a steam turbine. The United States mostly uses coal power plants that burn coal to heat water until it becomes steam. Other power plants use thousands of mirrors to reflect light from the sun to heat water stored in a tower. What are some disadvantages of using steam to generate electricity? Select THREE that apply.

• Burning coal can cause air pollution.

• A region would need plenty of coal and also a good water source which not every area has.

• Solar energy can only heat water during the day.

• Everybody has equal access to a lot of sunshine and water.

Tags

NGSS.HS-ESS3-4

What happens to the rays after they get to the glass?

• The rays go through the glass to the eyes of Person A.

• The rays bounce off the glass and some go into the glass.

• The light rays move in all directions.

• Most of the light gets transmitted through the glass but some of it is reflected and absorbed.

Tags

NGSS.MS-PS4-2

What will Person A see? What will Person B see?

• Person A will see the flashlight through the glass and Person B will see a faint image of the flashlight.

• Person A will see the flashlight through the glass and Person B will not see anything.

• Person A will feel the heat from the light but will not see it. Person B will not see anything.

• Both Person A and Person B will see a faint image of the flashlight.

Tags

NGSS.MS-PS4-2