Photons & Particles
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Photons & Particles

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Questions and Answers

Match the colors of the visible spectrum to their wavelengths.

Note

415 nm = 0.415 μm = 4.15 x 10–1 μm = 4.15 x 10–7 m

Another way to look at this quantity is that 415 nm is about 1/20 the diameter of a red blood cell, a concept that is important for an understanding of how light microscopes work.

415 nm = violet 467 nm = blue 532 nm = green 577 nm = yellow

Match the colors of the visible spectrum to their wavelengths.

Note

415 nm = 0.415 μm = 4.15 x 10–1 μm = 4.15 x 10–7 m

Another way to look at this quantity is that 415 nm is about 1/20 the diameter of a red blood cell, a concept that is important for an understanding of how light microscopes work.

607 nm = orange 682 nm = red 400 nm (extra knowlege) = violet 700 nm (extra knowlege) = red

Place these photons in the correct order, from lowest to highest energy.

lowest energy = ultraviolet light higher energy = X-rays highest energy = gamma rays

Place the wavelengths of these photons from shortest to longest (remember that shorter wavelengths have higher energy and longer wavelengths have lower energy).

<h1>gamma rays = shortest radio waves = longest visible light = medium</h1> Signup and view all the answers

Which of the following electromagnetic waves has the longest wavelength?

<p>Red</p> Signup and view all the answers

Which of the following electromagnetic waves has the shortest wavelength?

<p>Violet</p> Signup and view all the answers

Select the electromagnetic waves that are paired correctly with their wavelength and energy level. (More than one answer may apply).

<p>gamma rays: short wavelength, high energy</p> Signup and view all the answers

Match the particle used in human medicine to its energy.

<h1>alpha particle = lowest energy beta particle = moderate energy gamma particle = highest energy</h1> Signup and view all the answers

Match the particle used in human medicine to its identity.

<h1>alpha particle = helium nucleus ( 2 protons, 2 neutrons) beta particle = electron gamma particle = photon</h1> Signup and view all the answers

All about photons (2)

<p>Not part of atom</p> Signup and view all the answers

Rearrangement of the nucleus/electrons result in "leftover" energy ONE/MORE photons released to balance the change energy.

<p>True</p> Signup and view all the answers

Law of conseruation of energy

<p>canNOT be created or destroyed</p> Signup and view all the answers

Photons come from: Nuclear Rearrangements, Nuclear Fission, Electrons Rearrangement?

<p>True</p> Signup and view all the answers

What is Nuclear Rearrangement? select all that apply.

<p>protons/neutrons rearrange themself in a lower-energy</p> Signup and view all the answers

What is Nuclear Fission? select all that apply.

<p>Nucleus coming apart</p> Signup and view all the answers

What is Electron Rearrangement? select all that apply.

<p>Electron shifts between one orbital involes a change in the amount of energy</p> Signup and view all the answers

How does Wave Length work? select all that apply

<p>Longer wave length = lower frequency = lower energy</p> Signup and view all the answers

Violet: shorter wavelength, higher frequency, higher energy.

<p>True</p> Signup and view all the answers

X-rays (select all that apply)

<p>Photons have so much energy, can penetrate the human body</p> Signup and view all the answers

Gamma Ray

<p>So energenic, so full of energy, extreme short wave length</p> Signup and view all the answers

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