Physics 060 Alpha, beta, gamma decay worksheet
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or
answers the question.
1) Alpha rays can penetrate 1) _
A) several millimeters of aluminum.
B) air only.
C) a piece of paper.
D)
Physics 060 Worksheet on Isotopes
March 27,2008
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or
answers the question.
1) Which of the atomic particles has the least mass? 1) _
A) neutron B) nucleon C) proton D) electron
2)
Physics 060 Dynamics worksheet
1) Which of Newton's laws best explains why motorists should buckleup? 1) _
A) the second law B) the law of gravitation
C) the third law D) the first law
2) When you sit on a chair, the resultant force on you is 2) _
A) dow
1. An electron is moving North with an initial speed of 2x10 5 m/s through a
magnetic field directed down of strength 152 Gauss. a) What is the
magnitude and direction of the magnetic force on the electron? b) What is
the magnitude of the acceleration of
A. Magnets
S
13,14
1. magnetic field (B) causes force on moving charge:
F = q v x B, magnitude: F = q v B sin(vB)
direction: right hand rule: thumb = hand x
fingers
2. units: 1 Tesla = 10,000 Gauss = Nt sec/Coul meter
3. mass spectrometer: r = m v / q B
1. Laser light of wavelength 632 nm is directed through a double slit with
slit separation of 0.1 mm. What is the distance between adjacent maxima
on a screen 4 meters away?
2. A laser light of wavelength 633 nm shines through a crack and the
resulting di
1. Explain how an xray machine produces xrays. This should include a
discussion of discrete and continuous spectra.
2. What are the three main means of absorbing xrays and for which energy
range is each dominant?
Answers to Supplementary Problems:
1. A be
1. Assume a temperature for the skin surface of yourself and calculate the wavelength where
your radiation peaks assuming you radiate as a perfect blackbody.
2. The sun's power output per wavelength vs. wavelength curve peaks at a wavelength of 480
nm. (a
1. Given the wavelength of an electromagnetic wave, identify its type (e.g.,
given a wavelength of 5.5 x 107 m, the type is visible (yellow) ).
2. a) What is the speed of light in air? b) What is the speed of light in
water (index of refraction of water
A. Cameras
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1. fstop = f/D
2. time: amount of light proportional to time and area (D)
3. diffraction effects proportional to 1/D [1.22 = D sin(limit)]
4. thin films for minimizing reflection (see above)
B. The eye
S39
1. focusing
2. acuity
C. Tele
A. Energy and wavelengths
S66
1. Ephoton = hf; f = c; therefore, E = hc/
2. Eedge 13.6 eV (Z1)
B. Interference (xray diffraction)
1. nmax = 2 d sin(max)
C. Absorption
S67
1. intensity (I) vs distance (x) and material ():
I(x) = Ioex
2. intensity vs wa
A. Electromagnetic waves
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23,24
1. speed of waves = 1/(oo) = 3 x 108 m/s = c
2. waves and frequency: the spectrum
(a) radio
red
(b) microwave & radar
orange
(c) infrared
yellow
(d) visible

colors<
green
(e) ultraviolet
blue
(f) xray and gamma ray
viol