Every question only has one correct answer. I do not need the process, only the

Question

Every question only has one correct answer. I do not need the process, only the answer (A/B/C/D). Thank you so much!

1.If you strike a piece of flint against a piece of steel, you can shave a red-hot spark off the steel. However, moments later the surface of the steel itself barely feels warm. What happens to the thermal energy in that surface?

A. The energy was all contained in the spark

B. Metal is not a good conductor of heat

C. The flint retains the heat

D. Metal in its sold form is always cool

2. on days when there has a front has come through you can have fog form over lakes. Why does this happen?

A. Fog is thermodynamically variable

B. Fog requires sunlight to dissipate

C. Fog requires moisture to form

D. Tje water temperature can be much warmer than the outside air

3.Both heating elements project into the same hot water container inside the water heater. When the top element is heating water at the top of the container, why doesn’t convection occur and cause water at the bottom of the container to also become hot?

A. The heating element is not large to heat all of the water

B. Hot water rises

C. Cold water produces equilibrium

D. Tank walls are too thin to maintain heat

4. Why Can a Microwave cook a potato more efficiently and quicker?

A. microwaves cook faster

B. Microwaves use magnets to cook

C. microwaves heat the water in an element and can penetrate through a potato

D. microwaves excite the starch in the potato

5. You might see a “cowboy match” in a movie light a match by rubbing it on the heel of their boot. How does a match light that way?

A. Phantom power

B. Fusion

C. Friction

D. Flaming

6.When you rub a match on a matchbook, it suddenly bursts into flames. The principal source of heat here is ?

A. Thermal reaction

B. Chemical reaction

C. Gastric reaction

D. Matching reaction

7. Temperature inversions are created by:

A. Pollution and fog

B. From the hole in the Ozone layer

C. From the Liendenfrost factor

D. heat being trapped and heating already warm air

A. Fog is thermodynamically variable

B. Fog requires sunlight to dissipate

C. Fog requires moisture to form

D. Tje water temperature can be much warmer than the outside air

Explanation / Answer

1. A)

2. C)

3. B)Hot water rises

4. C) Microwave can heat the water in an element.

5. C) Friction

6. B) Chemical reaction

7. D)

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