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Different electromagnetic radiations are put in order by the:


A) electromagnetic table
B) electromagnetic spectrum
C) electromagnetic chart
D) electromagnetic list

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B

X-rays and gamma rays are the only electromagnetic radiations that are able to ionize matter.

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What is the wavelength of electromagnetic radiation if the frequency is 3 × 10¹⁰ m?


A) 1 × 10-2 m
B) 1 × 102 m
C) 3 × 10-2 m
D) 3 × 102 m

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Electromagnetic theory was developed in the late 1800s by:


A) Bohr
B) Rutherford
C) Maxwell
D) Planck

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An object we see as white is _______________ all of the wavelengths of visible light.


A) absorbing
B) diffusing
C) reflecting
D) changing

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C

The beta particle is an electron that is emitted from an outer shell.

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An alpha particle is the same as the nucleus of a(n) :


A) hydrogen atom
B) oxygen atom
C) carbon atom
D) helium atom

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In the formula E = hf,energy is measured in:


A) volts
B) amps
C) frequency volts
D) electron volts

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X-rays and gamma rays differ in:


A) the energy source that produces them
B) the effect they have on matter
C) their energy level
D) all of the above

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As compared to an alpha particle,a beta particle:


A) has less mass
B) has more mass
C) has the same mass
D) is less penetrating

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Electromagnetic radiation is a form of energy that originates from:


A) electricity
B) magnetism
C) the atom
D) something moving in space

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All radioactive elements occur naturally.

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All electromagnetic radiation travels at the same speed.

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Electromagnetic radiation causes both ____________ and _____________ disturbances.


A) mechanical;heat
B) electrical;mechanical
C) magnetic;electrical
D) mechanical;visual

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Alpha and beta particles are similar to x-rays and gamma rays in that they:


A) have no mass
B) are part of the electromagnetic spectrum
C) have the energy to ionize matter
D) have characteristics of wavelength and frequency

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As the wave's frequency increases,the wavelength:


A) stays the same
B) increases
C) decreases
D) it depends on the type of electromagnetic radiation

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Radioactive elements:


A) have excess energy in their nuclei
B) emit particles and energy
C) are trying to become stable elements
D) all of the above

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Particulate radiation includes:


A) alpha particles
B) x-ray particles
C) beta particles
D) A and C
E) all of the above

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Electromagnetic radiation has properties of a wave and a particle.

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True

When the alpha particle picks up two electrons as it passes through air it becomes a:


A) neutral atom of hydrogen
B) radioactive atom of hydrogen
C) neutral atom of helium
D) radioactive atom of helium

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