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28 Cards in this Set

  • Front
  • Back
What is the ability to do work?
energy
What is the energy given off by the sun?
electromagnetic radiation
What is electromagnetic radiation that causes sunburn?
UV light
What is electromagnetic radiation with the longest wavelength?
radio waves
What is electromagnetic radiation with the shortest wavelength?
gamma rays
What is an intense beam of light that spreads out very little?
laser
How does electromagnetic radiation from the sun travel to Earth?
In the vacuum of space?
What is a region that is empty of matter?
a vacuum
What is the number of light waves produced each second called?
frequency
What is the image you see in a plane mirror?
reversed
What is the height of a wave from it's resting position to it's highest or lower point?
amplitude
When light bounces back from a surface it's called?
reflection
What kind of mirror curves inward at the middle?
concave mirror
Which American inventor used a carbon filament made from burned thread to make a light bulb that lasted many hours?
Thomas Edison
What kind of mirror has a flat surface?
Plane mirror
What is the type of E-M radiation that you can see?
Visible light
The bending of light as it passes from one material to another is called?
refraction
Most types of electromagnetic radiation are what?
visible
The shorter the wavelength of electromagnetic radiation, the more _______ carried by the wave?
energy
When a wave moves what does it transfer?
energy
When light waves pass from air into water, their speed gets _________.
slower
All kinds of E-M waves travel through space at the ___________ speed.
same
Which light gets hotter, incandescent bulbs or fluorescent bulbs?
incandescent
Most chemical reactions that give off light also give off ______________.
heat
What is the distance from one crest of a light wave to the next crest?
wavelength
What is the unit used to measure frequency?
hertz
What is a disturbance that moves away from its starting point?
wave
What is the number of light waves produced each second?
frequency