Physical Science: Convex & Concave Lenses

Aila is creating a model of a double convex lens. She draws horizontal lines to show light rays traveling toward the lens. How should Aila draw the light rays after they move through the lens?

• Aila should draw them converging to a point.

• Aila should draw them diverging without intersecting.

• Aila should draw them diffracting and moving upward.

• Aila should draw them continuing in the same direction.

Tags

NGSS.MS-PS4-2

Which diagram shows light rays being reflected by the mirror?

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Tags

NGSS.MS-PS4-2

How is a convex lens able to project an image onto a screen?

• The lens bends light outward and creates a real image.

• The lens bends light outward and creates a virtual image.

• The lens bends light inward and creates a real image.

• The lens bends light inward and creates a virtual image.

A telescope is a tool that helps people observe distant objects. In the simplest telescope design, incoming light hits a lens and is focused to a single point. This focused image is then magnified by a second lens so that it is roughly the same size as an observer's pupil. Which of the following wave behaviors plays the most important role in the functioning of this type of telescope?

• refraction

• interference

• resonance

• reflection

Tags

NGSS.HS-PS4-5

A student must create a mode of a lens. The lens must be able to focus light into a small space. Which best describes the type of lens the student should model?

• The student should model a concave lens because it directs light toward the center of the lens.

• The student should model a convex lens because it directs light toward the center of the lens.

• The student should model a concave lens because it gathers bands of color together to form white light.

• The student should model a convex lens because it gathers bands of color together to form white light.

Tags

NGSS.MS-PS4-2

A student is creating a model of a convex lens. Which quality of a convex lens should the student include in the model?

• light is reflected

• light is focused

• light is spread out

• light is broken into bands of different colors

Which of these describes a concave lens?

• focuses light

• breaks light down into bands of color

• spreads light out

• reflects light

Tags

NGSS.MS-PS4-2

A student is building a model of a lens that will spread light over the biggest space. Which best describes the type of model the student should make?

• The student should make a convex lens model because it breaks light down into bands of color.

• The student should make a concave lens model because it breaks light down into bands of color.

• The student should make a convex lens model because it directs light away from the center of the lens.

• The student should make a concave lens model because it directs light away from the center of the lens.

Tags

NGSS.MS-PS4-2

A student is creating a model of a concave lens. The diagram shows her incomplete model. Which action would best complete her model?

• The student should draw the light moving into the lens and then exiting in converging lines.

• The student should draw the rays of light moving into the lens and then exiting at right angles.

• The student should draw the rays of light moving into the lens and then exiting in a straight path.

• The student should draw the light moving into the lens and then exiting in lines that are spreading out.

Tags

NGSS.MS-PS4-2

NGSS.MS-PS4-1

Which model shows what happens when light passes through a convex lens?

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Tags

NGSS.MS-PS4-2