Isci:chapter 6 Power Point Questions

Front 1

There is twice as much molecular kinetic energy in 2 liters
of boiling water as in 1 liter of boiling water. Which will be
the same for both?
A. Temperature.
B. Thermal energy.
C. Both of the above.
D. None of the above.

Back 1

A. Temperature

Front 2

If a red hot thumbtack is immersed in warm water, the
direction of heat flow will be from the
A. warm water to the red hot thumbtack.
B. red hot thumbtack to the warm water.
C. no heat flow.
D. not enough information.

Back 2

B. Red Hot thumbtack to the warm water

Front 3

The same quantity of heat is added to different amounts of
water in two equal-size containers. The temperature of the
smaller amount of water
A. decreases more.
B. increases more.
C. does not change.
D. not enough information.

Back 3

B

Front 4

You heat a half-cup of tea and its temperature rises by 4°C.
How much will the temperature rise if you add the same amount of heat to a full cup of tea?

A. 0°C.
B. 2°C.
C. 4°C.
D. 8°C.

Back 4

B

Front 5

When work is done on a system, compressing air in a tire
pump, for example, the temperature of the system
A. increases.
B. decreases.
C. remains unchanged.
D. is no longer evident.

Back 5

A. Increases

Front 6

Your room gets messier each week. In this case, the
entropy of your room is
A. increasing.
B. decreasing.
C. hanging steady.
D. nonexistent.

Back 6

A

Front 7

Which has the higher specific heat, water or land?
A. Water.
B. Land.
C. Both of the above are the same.
D. None of the above.

Back 7

A

Front 8

When stringing telephone lines between poles in the
summer, it is advisable to allow the lines to
A. sag.
B. be taut.
C. be close to the ground.
D. allow ample space for birds.

Back 8

A

Front 9

When a sample of 0°C water is heated, it first
A. expands.
B. contracts.
C. remains unchanged.
D. not enough information.

Back 9

B

Front 10

When a sample of 4°C water is cooled, it
A. expands.
B. contracts.
C. remains unchanged.
D. not enough information.

Back 10

A

Front 11

If you hold one end of a metal bar against a piece of ice,
the end in your hand will soon become cold. Does cold flow
from the ice to your hand?
A. Yes.
B. In some cases, yes.
C. No.
D. In some cases, no.

Back 11

C. No

Front 12

Although warm air rises, why are mountaintops cold and
snow covered, while the valleys below are relatively warm
and green?
A. Warm air cools when rising.
B. There is a thick insulating blanket of air above valleys.
C. Both of the above.
D. None of the above.

Back 12

C

Front 13

If a good absorber of radiant energy were a poor emitter, its
temperature compared with its surroundings would be
A. lower.
B. higher.
C. unaffected.
D. none of the above.

Back 13

B

Front 14

Which melts faster in sunshine—dirty snow or clean snow?
A. Dirty snow.
B. Clean snow.
C. Both of the above.
D. None of the above.

Back 14

A