Light and EM Spectrum

When light is reflected from a surface, as the angle of incidence increases, the angle of reflection ____.

• increases

• decreases

• remains the same

• cannot be determined

Why do you see lightning from a distant storm before you hear thunder?

• The thunder is produced after the lightning.

• Your eyes react faster than your ears.

• Light travels faster than sound.

• Sound travels faster than light.

When a wave passes from a less dense medium to a more dense medium, the ____ may change.

• speed

• frequency

• wavelength

• speed, frequency and wavelength

Tags

NGSS.HS-PS4-1

Part of a pencil that is placed in a glass of water appears bent in relation to the part of the pencil that extends out

of the water. What is this phenomenon called?

• interference

• refraction

• diffraction

• reflection

Tags

NGSS.MS-PS4-2

When a ray of light traveling in water reaches a boundary with air, part of the light ray is reflected and part is

refracted. Which ray diagram best represents the paths of the reflected and refracted light rays? NOTE-LIGHT IS

ENTERING from the BOTTOM of the picture.

• 
• 
• 
• 

Light rays that hit a convex mirror ____ as they are reflected.

• disappear

• diverge

• unite (converge)

• magnify

Tags

NGSS.MS-PS4-2

The bowl of a shiny spoon forms an enlarged, upright image similar to that of a ____ mirror.

• refracting

• convex

• concave

• wide-angle

What type of mirror is used whenever a magnified image of an object is needed?

• flat mirror

• concave mirror

• convex mirror

• two-way mirror

The image formed by a plane mirror is ____.

• real and reversed

• real and upright

• upright and reversed

• virtual and inverted

Which property of light is illustrated by the diagram below?

• reflection

• refraction

• dispersion

• diffraction

Tags

NGSS.MS-PS4-2