Physical Science - Reflection and Mirrors

The diagram below shows a paper clip in front of a mirror. Where will the image of the paper clip appear to the observer? 1 2 3 4

3

Which type of surface is best able to reflect light? A rough, cloudy surface. A rough, polished surface. A smooth, polished surface. A smooth, cloudy surface.

A smooth, polished surface.

Which of these diagrams is a convex mirror?

A. [the diagram with the lump shaping outward]

How does a concave mirror form an image? It bends the light toward a focal point. It bends the light away from a focal point. It bounces the light toward a focal point. It bounces the light away from a focal point.

It bounces the light toward a focal point.

Stefan is writing a report about the law of reflection. In his report, he says that the angle of incidence is the angle between the surface of the mirror and the incoming ray. Do you agree with him? Why or why not?

Sample Response: I disagree with him because the angle of incidence is the angle between the incoming ray and the normal. The normal is perpendicular to the surface of the mirror.

The word "virtual" refers to something that exists in effect but not in actual fact. How does this definition relate to the virtual image you see of yourself in a plane mirror?

Sample Response: The image seems to be behind the mirror, but nothing is really there.

The diagram below illustrates the law of reflection. According to the law of reflection, which statement must be true? The measure of angle A equals the measure of angle B. The measure of angle B equals the measure of angle C. The measure of angle A equals the measure of angle C. The measure of angle B equals the measure of angle D.

The measure of angle B equals the measure of angle C.

In the mirror diagram shown, which is the normal? A B C D

c

Use the drop-down menus to answer the questions. Which type of mirror curves outward? Which type of mirror always has an image that is smaller than the object? Which type of mirror is used to focus light rays? Which type of mirror has a flat surface?

convex convex concave plane

Which building material would provide the best surface for viewing a reflection? cement brick glass wood

glass

According to the law of reflection, the angle of incidence is equal to the angle of refraction reflection deflection absorption

reflection

You can use the curved part of a spoon as a mirror because it ________ light. Which best completes the statement? reflects refracts absorbs enhances

reflects

Which describes one feature of the image formed by a plane mirror? real image larger than the object upside down right side up

right side up

The image of the lemon is at point I. What is the size of the image compared to the size of the lemon?

same size

Which are uses of convex mirrors? Check all that apply. magnifying mirrors for putting on makeup side-view mirrors on vehicles hallway safety mirrors focusing automobile headlights lenses in sunglasses

side-view mirrors on vehicles hallway safety mirrors lenses in sunglasses

What type of mirror is being used in the image?

concave

Which type of mirror can create a real image?

concave

Harry is reading an online summary of the law of reflection. The site states that after light hits a mirror, the angle of reflection is the angle between the reflected ray and the normal, which is the surface of the mirror. Which statement corrects an error on the site? The normal is a line perpendicular to the surface of the mirror. The normal is a line perpendicular to the incoming ray. The angle of reflection is the angle between the incoming ray and the normal. The angle of reflection is the angle between the reflected ray and the incoming ray.

The normal is a line perpendicular to the surface of the mirror.

Glare appears on a computer screen when light from the surroundings reflects off of the screen's surface. Some computer screens have a special coating to reduce glare. Which best explains how the coating works? The coating absorbs light that shines on it and prevents the light from reflecting. The surface of the coating is rough, so light that shines on it gets scattered in many directions. The coating bends light that passes through it and prevents the light from reaching the user's eyes. The surface of the coating allows light from the room to pass through but blocks the light from the screen.

The surface of the coating is rough, so light that shines on it gets scattered in many directions.