Scientific Method and Measurements

Q.

What are the fundamental units?

Q.

How many base SI units are there in SI unit system?

Q.

What are fundamental physical quantities?

Q. Which of the following is not a fundamental SI unit?

1. metre
2. gram
3. second
4. candela

Q.

What are the examples of fundamental units?

Q.

Give two examples of physical quantities.

Q.

What is the smallest unit of power?

1. Watt

2. Kilowatt

3. Horsepower

4. Milliwatt

Q.

What do you mean by ideal volume?

Q. The symbol for units should be written with a small letter.

1. True
2. False

Q.

The most appropriate unit to measure the length of the book is

1. Millimetre

2. Metre

3. Micrometre

4. Centimetre

Q. If 1 kg of air(g=1.4) is heated adiabatically from zero degree celsius to 10 degree Celsius. then increase in its internal energy will be- (specific heat at constant volume = 0.172 Cal/gm.C )

Q. Length is a physical quantity.

1. True
2. False

Q.

The distance between two extreme ends of an object is called.

Q. The SI unit of time is ___ .

Q.

Which one of the following is not a fundamental SI unit?

1. Ampere

2. Candela

3. Newton

4. Kelvin

Q. A person gives 200000 cal. Of heat by evapouration of water from the skin . How much water has been lost? Latent heat of evapouration of water is 2.26 10 power 6 j/kg

Q.

Which of the following is not a fundamental/basic unit of measurement?

1. Length

2. Temperature

3. Area

4. Current

Q.

How many watts is equal to one horsepower?

Q.

What do you understand by the term unit?

Q.

What is power with its uses?

Q. Which of the following system of units is not based on unit of mass, length and time?

1. FPS
2. CGS
3. MKS
4. SI

Q. Area is not a derived quantity.

1. True
2. False

Q. State if the following statements are true or false. Correct the statement if it is false.
There are seven base units in the SI system.

1. True
2. False

Q. Length is a physical quantity.

1. True
2. False

Q.

What is power?

Q. The appropriate unit for measuring the thickness of a coin is:

1. Centimetre
2. Millimetre
3. Micrometre
4. Kilometre

Q. What is the full form of S.I. in S.I. system?

1. Sponsored initiative
2. Standard initiative
3. Standard international
4. Sponsored international

Q. A physical quantity can be measured.

1. True
2. False

Q. a solid cylinder of length L and radius r is heat uptosame temperature as that of cube of edge length a . if both have same material , volume and allowed to cool under similar conditions , then ratio of amount of radiationsradiated will be

Q. Volume is a derived quantity.

1. False
2. True