Question 1

A student is looking directly at a lit nightlight through two different cardboard tubes as shown.

Through which tube, if any, will the light be seen and why?

Accepted Answer

The straight tube only because the light travels in a straight line directly to the student’s eye

Answer

Neither tube because both tubes absorb all of the light

Answer

The bent tube only because the light bounces off the sides of the tube and travels through the tube to the student’s eye

Answer

Both tubes because light travels equally well along straight and curved paths

Question 2

A thin beam of light is shown in this picture.

What does the picture demonstrate about light?

Accepted Answer

Light and its reflections travel in straight lines.

Answer

Light can travel in a circular path.

Answer

Light that goes through water cannot travel in straight lines.

Answer

Light cannot reflect from more than one surface.

Question 3

The picture shows how a light ray behaves with two different types of materials.

Which table best describes the behavior of the light ray as it encounters the materials?

Accepted Answer

https://uploads.quizalize.com/71d84910-e454-4c76-b855-bd937f5206b8/question/344a222de93e5d8fa27e5842abed70f16341c789.png

Answer

https://uploads.quizalize.com/71d84910-e454-4c76-b855-bd937f5206b8/question/94ad751bd3fe4c54eb537e56c1b75998989867d8.png

Answer

https://uploads.quizalize.com/71d84910-e454-4c76-b855-bd937f5206b8/question/c54216203b60e6aa83ea2355476eb1c674e8dca3.png

Answer

https://uploads.quizalize.com/71d84910-e454-4c76-b855-bd937f5206b8/question/f0efc8185ce01d9d3ebf1717130a8897cdb8575d.png

Question 4

Some students are feeding a crab in an aquarium. They use tongs to place the food directly in front of the crab. The students look through the side of the aquarium. They notice that the image of the tongs appears to break as the tongs enter the water.

Which property of light are the students observing in this situation?

Accepted Answer

Light is refracted as it moves from one medium to another medium.

Answer

Light can be refracted and separated into different colors as it moves from air to a different medium.

Answer

Light travels in a straight line and can be reflected off the surface of water.

Answer

Light is absorbed by water and reflected off glass.

Question 5

A student conducts an investigation by shining a flashlight toward a flat mirror. The student changes the angle of the mirror and observes the path of the reflected light.

As the mirror changes direction, the light reaching the mirror can reach the ceiling because the light —

Accepted Answer

travels in straight lines and reflects from the surface of the mirror

Answer

travels through air and does not change its direction in air

Answer

refracts in the glass of the mirror and is spread out all over the room

Answer

enters the mirror and changes direction when it is refracted by the back of the mirror

Question 6

This photograph shows a girl using a lab instrument during an investigation on light. A teacher asks the other students in the class to look carefully at the girl’s eye and give reasons for its appearance. Which table correctly identifies the reasons for the appearance of the girl’s eye through the lab instrument?

Accepted Answer

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Answer

#texas/e04e5f84-11b5-4c4b-9d49-0a2b1974fb67/C.png

Answer

#texas/e04e5f84-11b5-4c4b-9d49-0a2b1974fb67/A.png

Answer

#texas/e04e5f84-11b5-4c4b-9d49-0a2b1974fb67/D.png

Question 7

The picture shows an area of Yosemite National Park. Which statement about light is supported by this picture?

Accepted Answer

Light is reflected off the smooth surface of the lake.

Answer

Light can refract in air and in clear water.

Answer

Light travels in straight lines until it enters a different material like water in a lake.

Answer

The water in the lake is blue because light forms an image.

Question 8

Lasers produce a beam of light that can be focused on a small area. A teacher uses two mirrors to shine a beam of light from a laser onto a box. Which diagram shows how the teacher should position the two mirrors?

Accepted Answer

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Answer

#texas/664b01aa-8809-4ba7-ad3f-450c270befa9/A.png

Answer

#texas/664b01aa-8809-4ba7-ad3f-450c270befa9/D.png

Answer

#texas/664b01aa-8809-4ba7-ad3f-450c270befa9/B.png

Question 9

A teacher takes the top and a side off a box. She cuts a hole in another side and puts a candle outside the box, as shown below. When the teacher lights the candle in a dark room, some of the candlelight shines through the hole. Which diagram best shows how the light appears on the opposite wall of the box?

Accepted Answer

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Answer

#texas/7444e8bb-01a8-4e51-bc9e-e6fe7abd8d02/B.png

Answer

#texas/7444e8bb-01a8-4e51-bc9e-e6fe7abd8d02/D.png

Answer

#texas/7444e8bb-01a8-4e51-bc9e-e6fe7abd8d02/C.png

Question 10

A student looks into a mirror and sees an image of an object. Which diagram shows an X where the object is most likely located?

Accepted Answer

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Answer

#texas/f3d674ff-a6ac-493a-91b1-6e4ce8b8ca5c/B.png

Answer

#texas/f3d674ff-a6ac-493a-91b1-6e4ce8b8ca5c/C.png

Answer

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