Light Energy Question Preview (ID: 47338)


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A packet of energy is called
a) a photon
b) a wave
c) proton
d) electron

A lens that is thick in middle and thin on sides is
a) a prism
b) concave
c) convex
d) glass

Refraction happens when
a) light travels through one medium to another
b) light absorbs then is reflected
c)
d)

if it makes its own light it is
a) luminous
b) illuminated
c) reflected
d) refracted

What is the color black
a) all light being reflected changed to heat energy
b) all light being absorbed changed to heat energy
c)
d)

When the arrow changed direction we used what concept
a) reflection
b) absorption
c) refraction
d) Translucent

An example go how we use refractions is
a) using a telescope to see distance
b) using a magnifying glass to see things up close
c) Wearing glasses to focus on things
d) ALL choices

When light slows down and bends it...
a) reflects
b) transmits
c) bounces
d) refracts

White light is
a) all colors except blue
b) all colors of rainbow that we see when absorbed
c) all colors of visible light that we see when reflected or refracted
d) only from a light bulb

To reflect light its best to use
a) a flat shiny surface
b) a flat rough surface
c) a opaque material
d) a translucent material

When the sun shines you cast a shadow because
a) you are transparent
b) you are opaque
c) you are translucent
d) you are smart

The shirt looks red because
a) red light is being absorbed
b) red light is being reflected
c) red light in traveling through
d) red light is refracting

the angel of incidence in reflection will equal the angle of
a) refraction
b) traction
c) diffraction
d) reflection

Translucent materials
a) block all light
b) allow all light to travel through
c) some light can travel through
d)

What is the measurement of light wave
a) feet
b) Light ray
c) frequency
d) wavelength

Number of waves produced in a given amount of time (how often)
a) amplitude
b) wave speed
c) frequency
d) wave length

The amplitude of a wave is..
a) how long the wave is
b) how high the wave is
c) how fast
d) how visible

What is different between lens and a mirror
a) A mirror refract
b) a mirror bends light
c) a mirror reflects light a lens refracts light
d) the are the same

What are 2 examples of invisible light ?
a) ultrasonic and UV
b) Infrared and UV
c) Infrared and Ultrasonic
d) Full spectrum and UV

What waves are the longest
a) Radio
b) Gamma
c) UV
d) Infrared

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