Physics Questions

Q:

Which of the following is a Non Renewable Resource of Energy?

A) Wind Power B) Hydrogen Fuel
C) Natural Gas D) Solar Energy
 
Answer & Explanation Answer: C) Natural Gas

Explanation:

Natural Gas is a Non Renewable Resource of Energy because that does not renew itself once used, unlike the other choices. 

It is a resource that will not be naturally replenished.

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Q:

The rate of flow of electric charge is measured in

A) ampere B) coulomb
C) ampere/coulomb D) ampere-coulomb
 
Answer & Explanation Answer: A) ampere

Explanation:
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Q:

Which of the following is a renewable source of energy

A) Natural gas B) Coal
C) Wind D) Oil
 
Answer & Explanation Answer: C) Wind

Explanation:

The energy sources that are constantly being replenished, such as sunlight, wind, and water. This means that we can use them as much as we want, and we do not have to worry about them running out. Additionally, renewable energy sources are usually much more environmentally friendly than fossil fuels. Overall, they release very few chemicals, like carbon dioxide, that can harm the environment.


Most of this energy comes from fossil fuels, such as coal, oil, and natural gas. These are nonrenewable energy sources, which means that if we use them all up, we can never get more during our lifetime. Fossil fuels also contribute greatly to global climate change by releasing carbon dioxide into the air when they are burned.

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Q:

An integrated circuit is more advantages than a coventional circuit because 

A) they make the electric equipments more reliable and easier for servicing B) a faulty part of a conventional circuit may be difficult to locate and repair
C) if a part of the integrated circuit fails the entire circuit is simply replaced D) all the above
 
Answer & Explanation Answer: D) all the above

Explanation:

Integrated circuit (IC) is a tiny device that controls electric signals in such electronic equipments as computers and T.V sets. Many integrated circuits contain thousands of electronic parts on a paper - thin chip of silicon. These parts include capacitors, diodes, all in a very small, compact space.

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Q:

As water is cooled from 4 deg C to 0 deg C, its density

A) increases B) decreases
C) remains same D) None of the above
 
Answer & Explanation Answer: B) decreases

Explanation:

As water is cooled from 4 deg C to 0 deg C, the water reaches its freezing point and starts forming ice crystals. Then the volume of that ice cubes increases and its density decreases. Hence, it is the reason that ice will float on water as ice has less density than the water.

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Q:

Conservation of energy refers to the fact that

A) if you conserve energy you will not be as tired B) energy cannot be created or destroyed but can be converted from one form to another
C) no chemical reaction is 100 percent efficient D) the entropy of the universe is always increasing
 
Answer & Explanation Answer: B) energy cannot be created or destroyed but can be converted from one form to another

Explanation:

"Conservation of energy" refers to the fact that energy cannot be created or destroyed but can be converted from one form to another.

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Q:

which is a best way to measure Ground Distance?

Answer

Pace Count is a way to measure to Ground Distance.


Pace Count is nothing but regular single natural step of about 30 inches long.

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Q:

How many bottles of water is a gallon?

A) 16 B) 8
C) 4 D) 2
 
Answer & Explanation Answer: B) 8

Explanation:

The easiest way would measure it through half a liter water bottle. There are approximately 16.9 ounces(oz) of water in a 500ml water bottle.

 

Gallon is an imperial customary volume unit for the U.S.

 

As we have previously mentioned, the 16.9oz bottle is also known as 500ml in the metric system. According to U.S. standard, 1 gallon stands for 128 fluid oz.

 

Hence, Number of bottles in 1 gallon = 128/16.9 = 7.57 =~ 8.

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