Plane Mirrors

When you look at yourself in a ​ (a)   mirror, also called a plane mirror, you see the reflected ​ (b)   that traveled from your body, to the mirror, and back to your eye. The image you see appears to come from behind the mirror and is therefore a ​ (c)   image.

• flat
• light
• virtual

Tags

NGSS.MS-PS4-2

laws of reflection

• The angle of incidence and reflection are always perpendicular to the surface.
• The angle of reflection is twice the angle of incidence.
• The angle of incidence is always greater than the angle of reflection.
• The angle of incidence equals the angle of reflection.

Tags

NGSS.MS-PS4-2

light rays obey the law of (a)   as they strike the mirror's surface, traveling away from the mirror at the same (b)   from the normal as the incoming ray.

• reflection
• angle

Tags

NGSS.MS-PS4-2

Light travels ___________.

• backwards
• in a straight line
• in curves
• at a right angle

This reflection is

• specular.

• diffuse.

Tags

NGSS.MS-PS4-2

What type of image is formed in a plane mirror?

• Real
• Virtual
• Enlarged
• Small

If Θ1 is 70 degrees what is Θ2?

• 20

• 40

• 70

• 90

If Θ1 is 70 degrees what is Θ3?

• 20

• 40

• 70

• 90

The imaginary line perpendicular to a reflecting surface is called _____.

• crooked line
• parallel line
• angular line
• normal line

Tags

NGSS.MS-PS4-2

The diagram shows a tank of water in which parallel wave fronts are travelling toward a barrier.  Which represents the direction of travel for the wave after being reflected from the barrier?

• A
• B
• C
• D

Tags

NGSS.MS-PS4-2