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Physics of Light

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  • List the 3 primary colors of pigment
    Cyan, Pink, Indigo
    Violet, Red, Orange
    Red, yellow, blue
    Magenta, Yellow, Cyan
  • What happens to the electrons in an object when light hits it?
    Electrons increase in energy and jump up energy levels
    Electrons get hyper and vibrate but don't move to new levels
    Electrons decrease in energy and fall down energy levels
  • If a mirror or lens is not curved, it is called __________.
    Flat
    Frosted
    Convex
    Concave
  • What happens to the electrons in an object when light reflects off of it? They...
    suck energy from the air to return to their original levels
    fall down to original energy level, releasing light energy
    vibrate in the same spot which sends waves of light out
  • What is interference?
    When light blocks the path of a spaceship
    When someone gets in your way
    When light rays try to reflect but run into each other
    When light rays try to refract but get lost in the medium
  • True or False: UV-B causes premature wrinkles and goes deep into your skin.
    False (It's UV-A)
  • When light interacts with GLASS, what 3 things can occur? (see p 10 in guidebook)
    Retransmission, Absorption, Reflection
    Melting, Breaking, Shining
    Refracting, Running, Interfering
  • On a flat mirror, what is the "incoming" ray and the "outgoing" ray?
    Reflecting, incident
    Long, short
    Incident, reflecting
    Refracting, Disappearing
  • What makes a rainbow show all the colors?
    Light wavelengths act as projectors
    Drops of water act as prisms
    Dust particles act as refractors
    Unicorns act as a rainbow horse army
  • What is it called when light bounces off an object, causing us to be able to see it?
    Reflection
    Interference
    Refraction
    Projection
  • Choose the best statement about how light affects our ability to see objects.
    Light is merely an illusion; you are seeing brain impulses.
    Light has to reflect off objects & physically enter our eyes
    Light has to refract through glass first, then enter our eye
    Light only flows directly from the sun into our eyes.
  • Light passes through glass because the molecules vibrate & pass those vibrations to neighboring atoms through the substance. This is called:
    Reflection
    Absorption
    Retransmission
  • The _______________ wants everything to be the same and is surprised when everything is different
    Chemist
    Physicist
  • What is refraction?
    Light is really pretty but too bright to look at
    Light is bent from its normal course but isn't reflected
    Light is projected from a source but is not visible
  • In Greek, the word “Physics” literally means
    Motion and matter
    The study of movement
    Nature
    Forces and energy
  • Why is the sky blue?
    Smaller blue light waves scatter off gas and dust particles
    Ice particles high in the atmosphere look blue- they're cold
    Ocean water reflects its blue color up to the atmosphere
    Because God likes the color blue the best.
  • List the 3 primary colors of light:
    Black, white, and gray
    Red, Green, Blue
    Cyan, Magenta, Yellow
    Red, yellow, blue