CP: 2FF FEM Les. 3: Light

Which of the following statements about light is true?

• Light cannot be seen.

• Light can only be produced by the sun.

• Light can travel through outer space.

• None of the above

Answer explanation

Light can indeed travel through outer space, which is the correct choice. While light is not visible itself, it allows us to see objects by reflecting off them. Additionally, light can be produced by various sources, not just the sun, such as light bulbs, fire, and stars.

Tags

112.16.b.6.A

112.7.b.8.C

112.16.b.6.C

112.7.a.1.C

When light bounces off a mirror, it bounces

• off the mirror at the same angle that it hit the mirror

• directly back toward the source

• outward in all directions from the mirror

• around the mirror and continues on the other side

Answer explanation

When light bounces off a mirror, it follows the law of reflection, which states that the angle of incidence is equal to the angle of reflection. This means that light bounces off the mirror at the same angle that it hit the mirror, making this the correct choice.

Tags

112.16.b.6.A

112.7.b.8.C

112.16.b.6.C

112.7.a.1.C

Which answer best describes what happens to light rays that pass through a convex lens?

• The light rays bend outward.

• The light rays separate into colors.

• The light rays pass straight through the lens.

• The light rays bend inward.

Answer explanation

When light rays pass through a convex lens, they bend inward. This is because the lens has a thicker center and thinner edges, causing the light to refract towards the center. This property of convex lenses allows them to focus light, making them useful in applications such as eyeglasses and cameras.

Tags

112.16.b.6.A

112.7.b.8.C

112.16.b.6.C

112.7.a.1.C

Students perform an investigation in which light passes through a prism before striking a mirror. The students' investigation is designed to demonstrate which phenomenon?

• Light that is being refracted and then reflected.

• Light that is being reflected and then refracted.

• Light that is being transmitted and then absorbed.

• Light that is being absorbed and then transmitted.

Tags

112.16.b.6.A

112.7.b.8.C

112.16.b.6.C

112.7.a.1.C

A student stands in a lit room and looks at a window made of dark glass. The student can see themselves in the window, and also dimly see a parking lot outside the window. Which conclusion should the student reach about the window?

• It strongly refracts light striking it.

• It both reflects and transmits light.

• It both refracts and transmits light

• It absorbs light without refracting or reflecting it.

Tags

112.16.b.6.A

112.7.b.8.C

112.16.b.6.C

112.7.a.1.C

The diagram below represents the sun shining onto the surface of a flat, shiny surface. The diagram most likely represents

• light reflection

• energy absorption

• light refraction

• energy transformation

Tags

112.16.b.6.A

112.7.b.8.C

112.16.b.6.C

112.7.a.1.C

A student made a poster about his science class and placed it next to the sink in the science lab. A drop of water fell onto one of the words, as shown in this image.

The word looked different than the other words when seen under the water droplet because light

• bounces off the surface of the water

• shines all around the water but not through it

• changes colors as it travels through the water

• bends as it passes through the water

Tags

112.16.b.6.A

112.7.b.8.C

112.16.b.6.C

112.7.a.1.C

Inside of a microscope, light passes through several lenses, producing an enormously magnified image. How do the lenses produce the magnified image?

• They reflect light.

• They refract light.

• They increase the amount of light.

• They increase the amount of color in light.

Tags

112.16.b.6.A

112.7.b.8.C

112.16.b.6.C

112.7.a.1.C

A blue shirt looks blue because -

• it absorbs blue light

• it reflects all colors of light

• it reflects blue light

• it refracts blue light

Tags

112.16.b.6.A

112.7.b.8.C

112.16.b.6.C

112.7.a.1.C

Match the following vocabulary and definitions:

• light

• the bouncing back of light waves off of a surface

• refraction

• the bending of light waves as they travel from one surface to another

• reflection

• a type of energy that can be seen, travels in waves, and can move through empty space

Tags

112.16.b.6.A

112.7.b.8.C

112.16.b.6.C

112.7.a.1.C