2.1 If we increase the velocity of a wave, keeping its frequency constant, its
wavelength
will
(a) increase,
(b) decrease, or
(c) remain the same
Give this one a try later!
, 2.1 From v = λf, we see that if we increase the velocity v, the wavelength λ
must also increase.
8.2 According to a stationary observer, a moving clock runs
(a) faster or
(b) slower
than an identical stationary clock.
Give this one a try later!
8.2 This is another consequence of Einstein's special theory of relativity. It is
called time
dilation. (B)
3.4 Consider standing waves in an air column inside a pipe. One end of the pipe is
open,
and the other end is closed.
(a) Only even harmonics are present.
(b) Only odd harmonics are present.
(c) Both even and odd harmonics are present
Give this one a try later!
3.4 This happens because there is a displacement node at one end of the
tube and a displacement
antinode at the other end. (B)
See Pages 560-561
,10.9 Identify the nuclide X in the following fission event: 235
92 U + n → 100
40 Zr + X + 2n.
(a) 132
51 Sb
(b) 133
51 Sb
(c) 134
51 Sb
(d) 135
51 Sb
(e) 132
52 Te
(f) 133
52 Te
(g) 134
52 Te
(h) 135
52 Te
Give this one a try later!
10.9 From conservation of nucleons, we have 235 + 1 = 100 + M + 2. From
conservation of
charge, we have 92 = 40 + Z. Thus, Z = 52 (Te), and M = 134. (G)
2.3 What kind of wave is sound?
(a) longitudinal
(b) transverse
Give this one a try later!
, 2.3 In a sound wave, the fluid moves back and forth in a direction parallel to
the direction of
propagation (longitudinal, like a compressed spring) (A)
4.2 If we heat up a piece of metal with a hole in it, the diameter of the hole
(a) increases,
(b) decreases, or
(c) remains the same
Give this one a try later!
4.2 Thermal expansion is like photographic enlargement. Everything is
larger, including holes. (A)
5.11 A heat pump
(a) moves heat from a hot object and puts it into a cold object or
(b) moves heat from a cold object and puts it into a hot object.
Give this one a try later!
5.11 The nature of a "pump" is to move something in a direction opposite to
how it would
naturally flow. In this case, heat flows naturally from a hot object to a cold
object. A heat pump moves heat in the opposite direction. (A)
5.13 In an irreversible process, the change in entropy of the system plus its
surroundings is
(a) always positive,
(b) always negative,
wavelength
will
(a) increase,
(b) decrease, or
(c) remain the same
Give this one a try later!
, 2.1 From v = λf, we see that if we increase the velocity v, the wavelength λ
must also increase.
8.2 According to a stationary observer, a moving clock runs
(a) faster or
(b) slower
than an identical stationary clock.
Give this one a try later!
8.2 This is another consequence of Einstein's special theory of relativity. It is
called time
dilation. (B)
3.4 Consider standing waves in an air column inside a pipe. One end of the pipe is
open,
and the other end is closed.
(a) Only even harmonics are present.
(b) Only odd harmonics are present.
(c) Both even and odd harmonics are present
Give this one a try later!
3.4 This happens because there is a displacement node at one end of the
tube and a displacement
antinode at the other end. (B)
See Pages 560-561
,10.9 Identify the nuclide X in the following fission event: 235
92 U + n → 100
40 Zr + X + 2n.
(a) 132
51 Sb
(b) 133
51 Sb
(c) 134
51 Sb
(d) 135
51 Sb
(e) 132
52 Te
(f) 133
52 Te
(g) 134
52 Te
(h) 135
52 Te
Give this one a try later!
10.9 From conservation of nucleons, we have 235 + 1 = 100 + M + 2. From
conservation of
charge, we have 92 = 40 + Z. Thus, Z = 52 (Te), and M = 134. (G)
2.3 What kind of wave is sound?
(a) longitudinal
(b) transverse
Give this one a try later!
, 2.3 In a sound wave, the fluid moves back and forth in a direction parallel to
the direction of
propagation (longitudinal, like a compressed spring) (A)
4.2 If we heat up a piece of metal with a hole in it, the diameter of the hole
(a) increases,
(b) decreases, or
(c) remains the same
Give this one a try later!
4.2 Thermal expansion is like photographic enlargement. Everything is
larger, including holes. (A)
5.11 A heat pump
(a) moves heat from a hot object and puts it into a cold object or
(b) moves heat from a cold object and puts it into a hot object.
Give this one a try later!
5.11 The nature of a "pump" is to move something in a direction opposite to
how it would
naturally flow. In this case, heat flows naturally from a hot object to a cold
object. A heat pump moves heat in the opposite direction. (A)
5.13 In an irreversible process, the change in entropy of the system plus its
surroundings is
(a) always positive,
(b) always negative,
