phy102 Chapter 12 week 7 Latest Exam
Questions and Answers with Verified
Solutions | Latest Updated 2026
1) When a chocolate bar is cut in B) unchanged.
half,
its density is
A) halved.
B) unchanged.
C) doubled.
2) Compared to a bar of pure gold, B) the same.
the density of a pure gold ring is
A) less.
B) the same.
C) slightly more.
D) much more.
3) Which has the greater density, C) Both have the same density.
a
lake full of water or a cup full of
lake
water?
A) the cup full of lake water
B) the lake full of lake water
C) Both have the same density.
D) It is impossible to tell without
knowing the size of the lake.
,4) Compared to the density of a B) more.
kilogram of feathers, the density of
a
kilogram of lead is
A) less.
B) more.
C) the same.
5) If a loaf of bread is compressed, D) density increases.
its
A) surface tension becomes less.
B) molecules become harder.
C) density decreases.
D) density increases.
E) none of thesev
6) If the mass of an object were to B) double.
double while its volume remains
the
same, its density would
A) halve.
B) double.
C) stay the same.
D) become four times as great.
7) If the volume of an object were A) halve.
to
double while its mass stays the
same,
its density would
A) halve.
B) double.
C) stay the same.
D) become four times as great.
, Figure 12-B B) compression.
8) When weight is applied to the
top
of a stone arch, all of the stone
blocks in the arch undergo
A) tension.
B) compression.
C) expansion.
D) change of phase.
Figure 12-C A) tension.
9) When a load is placed on the
middle of a horizontal beam
supported at each end, the bottom
part of the beam undergoes
A) tension.
B) compression.
10) You wish to bolt a sign to a C) web.
horizontal I-beam supporting a
bridge. You will weaken the beam
least if you drill the bolt-holes
through the
A) upper flange.
B) lower flange.
C) web.
D) All these will have the same
effect.
Questions and Answers with Verified
Solutions | Latest Updated 2026
1) When a chocolate bar is cut in B) unchanged.
half,
its density is
A) halved.
B) unchanged.
C) doubled.
2) Compared to a bar of pure gold, B) the same.
the density of a pure gold ring is
A) less.
B) the same.
C) slightly more.
D) much more.
3) Which has the greater density, C) Both have the same density.
a
lake full of water or a cup full of
lake
water?
A) the cup full of lake water
B) the lake full of lake water
C) Both have the same density.
D) It is impossible to tell without
knowing the size of the lake.
,4) Compared to the density of a B) more.
kilogram of feathers, the density of
a
kilogram of lead is
A) less.
B) more.
C) the same.
5) If a loaf of bread is compressed, D) density increases.
its
A) surface tension becomes less.
B) molecules become harder.
C) density decreases.
D) density increases.
E) none of thesev
6) If the mass of an object were to B) double.
double while its volume remains
the
same, its density would
A) halve.
B) double.
C) stay the same.
D) become four times as great.
7) If the volume of an object were A) halve.
to
double while its mass stays the
same,
its density would
A) halve.
B) double.
C) stay the same.
D) become four times as great.
, Figure 12-B B) compression.
8) When weight is applied to the
top
of a stone arch, all of the stone
blocks in the arch undergo
A) tension.
B) compression.
C) expansion.
D) change of phase.
Figure 12-C A) tension.
9) When a load is placed on the
middle of a horizontal beam
supported at each end, the bottom
part of the beam undergoes
A) tension.
B) compression.
10) You wish to bolt a sign to a C) web.
horizontal I-beam supporting a
bridge. You will weaken the beam
least if you drill the bolt-holes
through the
A) upper flange.
B) lower flange.
C) web.
D) All these will have the same
effect.
