A flywheel's diameter is twice that of another of the same shape and mass. Rotational inertia of the larger flywheel is
A) two times greater.
B) four times greater.
C) the same as the other's.
D) half.
Answer: B
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To double the period of a pendulum, you need to multiply its length by a factor of:
A. 
B. 2
C. 
D. 
E. 4
F. Some other result (specify)
The kinetic theory of gases suggests the average kinetic energy per molecule is (for a monatomic gas)
A) 1/2 kT. B) 5/2 kT. C) 3/2 kT. D) 2 kT. E) kT.
Why is the image seen in astronomical telescope eyepieces inverted?
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A thin uniform film of oil that can be varied in thickness covers a sheet of glass of refractive index 1.52. The refractive index of the oil is 1.64. Light of wavelength 555 nm is shone from air at normal incidence on the film
Starting with no oil on the glass, you gradually increase the thickness of the oil film until the first interference maximum in the reflected light occurs. What is the thickness of the oil film at that instant? A) 139 nm B) 169 nm C) 183 nm D) 84.6 nm E) 91.3 nm