PHYS 1010 Midterm 1 Exam (Units 1-3) with verified answers

PHYS 1010 Midterm 1 Exam (Units 1-3) with ||\\|//|| ||\\|//|| ||\\|//|| ||\\|//|| ||\\|//|| ||\\|//|| ||\\|//|| ||\\|//||




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A continuous spectrum is
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a) A band with most of the colours
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b) A solid line of one colour
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c) A spectrum of all the wavelengths in the rainbow
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d) A solid black band
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e) None of these answers - correct answer✔✔A spectrum of all the wavelengths in the
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rainbow



The simplest atom is
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a) Carbon
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b) An alpha particle
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c) Hydrogen
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d) Argon
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e) Helium - correct answer✔✔Hydrogen
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Visible light takes up most of the electromagnetic spectrum
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a) True
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b) False - correct answer✔✔False
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,We call a light particle a ___________ - correct answer✔✔Photon/Photons
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Electromagnetic radiations gets _________ as it moves away from its source ||\\|//|| ||\\|//|| ||\\|//|| ||\\|//|| ||\\|//|| ||\\|//|| ||\\|//|| ||\\|//|| ||\\|//|| ||\\|//||




a) Weaker ||\\|//||




b) Lower in frequency ||\\|//|| ||\\|//|| ||\\|//|| ||\\|//||




c) More intense ||\\|//|| ||\\|//||




d) Brighter ||\\|//||




e) Slower - correct answer✔✔Weaker
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If 11 waves takes 13 seconds to hit the shore, what is the frequency of the waves? Round to
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one decimal place
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F = waves/time (s) - correct answer✔✔0.8
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The ___________ of a source determines the type of radiation emitted - correct
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answer✔✔Temperature



An emission spectrum is a pattern of ||\\|//|| ||\\|//|| ||\\|//|| ||\\|//|| ||\\|//|| ||\\|//|| ||\\|//||




a) Bright lines against a black background
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b) Black lines against a continuous spectrum background
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c) Bright lines of a single colour specifying the emission type
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d) Coloured lines against a white background
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e) All the colours of the rainbow - correct answer✔✔Bright lines against a black
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background

, The number of wavelengths that pass by each second is called the _____________ - correct
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answer✔✔Frequency
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Light can act as a particle or a wave ||\\|//|| ||\\|//|| ||\\|//|| ||\\|//|| ||\\|//|| ||\\|//|| ||\\|//|| ||\\|//|| ||\\|//||




a) True ||\\|//||




b) False - correct answer✔✔True
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When there are missing colours seen as dark lines on a spectrum they are called
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a) Absorption spectrum
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b) Continuous spectrum
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c) Emission lines
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d) None of these ||\\|//|| ||\\|//|| ||\\|//||




e) Emission spectrum - correct answer✔✔Absorption spectrum
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From longest to shortest wavelengths, order the following types of electromagnetic
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radiation - correct answer✔✔1. Radio ||\\|//|| ||\\|//|| ||\\|//|| ||\\|//||




2. Microwave||\\|//||




3. Infrared ||\\|//||




4. Visible ||\\|//||




5. Ultraviolet
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6. X-ray ||\\|//||




7. Gamma ||\\|//||




By studying the light from distant objects, we can deduce information such as (pick all that
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apply)
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