Science STAAR

Which of these best demonstrates the reflection of light? (5.6C)

• Looking through the glass of a large window

• Looking at an image formed on a silver spoon

• Looking at a lightbulb that is glowing

• Looking at a star on a clear night

Tags

NGSS.MS-PS4-2

Scientists use telescopes to make distant objects appear closer. Some parts of a telescope are shown here. Which of the following best describes how the objective lens of this telescope helps a scientist observe the moon? (5.6C)

• The objective lens produces light.

• The objective lens blocks light.

• The objective lens reflects light.

• The objective lens refracts light.

The picture shows a child standing in a swimming pool. Why does the lower part of the child appear so much different in size from the upper part? (5.6C)

• The light rays that travel through water and then into air are refracted.

• The light rays that travel through water and then into air are enlarged.

• The light rays that travel through air and then into water are reflected.

• The light rays that travel through air and then into water are reduced.

Tags

NGSS.MS-PS4-2

Some students paint the inside of several boxes. They paint each box a different color. They observe that the inside of the box painted white looks brighter than the others. What is the most likely reason this box looks brighter? (5.6C)

• More light is reflected off white paint.

• More light is refracted by white paint.

• More light passes through white paint.

• More light is absorbed by white paint.

Tags

NGSS.MS-PS4-2

The model shows a special glass fiber that is thinner than some metal wires. When light enters one end of the fiber, it moves through the fiber as shown. After the light leaves the fiber, it travels---(5.6C)

• in a straight line

• back into the fiber

• around the fiber

• in a curve

Tags

NGSS.MS-PS4-2

The diagram shows a fish being viewed from above the water. The fish appears to be closer to the surface than it really is. What causes this difference? (5.6C)

• Light is reflected.

• Light is refracted.

• Light is focused.

• Light is blocked.

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? (5.6C)

• 
• 
• 
• 

Tags

NGSS.MS-PS4-2

The picture shows an area of Yosemite National Park. Which statement about light is supported by this picture? (5.6C)

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

• Light can refract in air and in clean water.

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

• Light is reflected off the smooth surface of the lake.

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? (5.6C)

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

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

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

• Light is absorbed by water and reflected off glass.

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---(5.6C)

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

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

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

• travels through air and does not change its direction in air

Tags

NGSS.MS-PS4-2