Mirrors and Lenses

Mirrors and Lenses

Mirrors

• REFLECT light

• Light bounces off at the same angle it enters

Multiple Choice

Mirrors____ light.

• Refract

• Reflect

• Absorb

• Diffract

Multiple Choice

If light strikes a plane mirror at a 45^o angle, what angle will it reflect?

• 145^o

• 90^o

• 45^o

• 180^o

Types of Mirrors

• Concave

• Convex

• Plane

Concave Mirror

• Curves INWARD

• Images are upside down

• Used in...Makeup mirrors, dental equipment, car headlights

• Light converges or comes together​

Convex Mirror

• Curves OUTWARD

• Images are smaller than actual size

• Used in...passenger car mirror, stores (for security)

• Light diverge or spread out.​

Plane Mirror

• FLAT

• Images are opposite

Multiple Choice

Which type of mirror is curved outward?

• Concave

• Convex

• Plane

Multiple Choice

Which type of mirror is curved inward?

• Concave

• Convex

• Plane

Multiple Choice

Which type of mirror is flat?

• Concave

• Convex

• Plane

Multiple Choice

Which type of mirror is this?

• Concave

• Convex

• Plane

Multiple Choice

Which type of mirror is this?

• Concave

• Convex

• Plane

Multiple Choice

Which type of mirror is this?

• Concave

• Convex

• Plane

Lenses

• REFRACT light

• Light bends as it passes through a different medium

Multiple Choice

Lenses____ light.

• Refract

• Reflect

• Absorb

• Diffract

Multiple Choice

As the light passes through this prism it is refracted. This means---

• It bounces back to make colors

• It is absorbed into the air

• It bends based on the color's wavelength

Types of Lenses

• Concave

• Convex

Concave lenses

• Curve INWARD

• Diverges orspreads out light

• Used in....binoculars, spy hole in doors, flashlights, and glasses

Convex lenses

• Curves OUTWARD

• Focuses light together or converges

• Used in....YOUR EYE, magnifying glasses, telescopes, Microscopes, glasses

Multiple Choice

Which type of lens is curved outward?

• Concave

• Convex

Multiple Choice

Which type of lens is curved inward?

• Concave

• Convex

Multiple Choice

Which type of lens is this?

• Concave

• Convex

Multiple Choice

Which type of lens is this?

• Concave

• Convex

Multiple Choice

Which type of lens is this?

• Concave

• Convex

Multiple Choice

Which type of lens is this? (Curved outward)

• Concave

• Convex

Multiple Choice

Which type of lens is this? (Curved inward)

• Concave

• Convex

Multiple Choice

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.

Multiple Choice

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

Multiple Choice

A model of a concave lens is shown below.

Which of the following describes a possible application of this type of lens?

• Concave lenses can be used in mirrors to make objects appear closer than they truly are.

• Concave lenses can be used in laser pointers to converge the projected light to a single point.

• Concave lenses can be used in microscopes to make small objects appear larger.

• Concave lenses can be used in car headlights to spread the projected light outwards.

Match

Match the following

Convex Lens

Concave Lens

Plane Glass

• Convex Lens

• Concave Lens

• Plane Glass

Multiple Choice

What does the word "diverging" mean?

• to spread apart
• to come together
• parallel
• perpendicular

Multiple Choice

What does the word "converging" mean?

• to separate
• to come together
• parallel 
• perpendicular

Multiple Choice

When light waves move from passing through air to passing through a glass lens when happens to them?

• They slow down and change direction

• They speed up and change direction

• They maintain the same speed and change direction

• They maintain their same speed and direction

Multiple Choice

A ___ lens makes objects appear bigger.

• concave
• convex
• prism
• flat

Multiple Choice

A __ lens makes objects appear smaller and further away.

• convex
• concave
• prism
• flat