SI Base Units

Q.

What are the three fundamental units?

Q. In a new set of units, unit of mass is 10kg, unit of length is 1 km, unit of time is 1 minute. The value of 1 joule in new hypothetical system is ?

Q.

Which of the following is the most appropriate unit to measure the length of a pen?

1. Centimetres

2. Megametres

3. Metres

4. Kilometres

Q.

Name two multiples and two submultiples of SI unit of mass

Q.

Define mass.

State its (i) S.I. (ii) C.G.S and (iii) F.P.S units?

How are they related?

Q.

What is a standard unit?

Q.

Define mass of an object. Give its SI unit.

Q.

__________ is the derived unit for volume.

Q. The SI unit of mass is ______.

1. Gram
2. Kilogram
3. Metre
4. Second

Q. The standard units of measurement followed all over the world is _____.

1. Derived units
2. SI units
3. Indian units
4. UK units

Q.

Why are they called fundamental units?

Q. Match the correct SI units

1. litre
2. second
3. kilogram
4. metre

Q. Scale and ruler are used for measuring ____.

1. mass
2. length
3. capacity
4. temperature

Q.

State two characteristics of a unit?

Q. The SI unit of temperature is _____.

1. Kelvin
2. Litre
3. Metre
4. Gram

Q. “Kelvin” is a SI unit of _______.

1. mass
2. volume
3. temperature
4. length

Q.

Explain what is volume unit conversion.

Q.

Which of the following is the largest unit of length?

1. $\mathrm{milimeter}\left(mm\right)$

2. $\mathrm{centimeter}\left(cm\right)$

3. $\mathrm{meter}\left(m\right)$

4. $kilometer\left(km\right)$

Q. Why it is necessary to have standard unit of measurements?

Q.

How many kilograms are equal to one quintal?

1. $10$

2. $100$

3. $1000$

4. $10000$

Q.

The SI unit of mass is ______

Q. Alex weighs 22 kg and his mother weighs four times as much as him. The weight of Alex's mother is

1. 44 kg
2. 80 kg
3. 60 kg
4. 88 kg

Q.

Standard unit of capacity is ____.

1. kilogram

2. metre

3. litre

4. gram

Q. is the unit of speed.

1. km/h
2. litre/s
3. kg/s

Q. If the cost of one egg is ₹5, then the cost of 9 eggs is ____.

1. ₹95
2. ₹45
3. ₹35
4. ₹25

Q.

The SI unit of length is _________.

1. Royal cubit

2. Meter

3. Feet

4. Yard

Q.

Why should we use standard units of measurement?

Q. SI system is metric system . what does it mean

Q. Pair the rupees with their equivalent paise.

1. ₹ 1.5
2. ₹ 1.15
3. 150 paise
4. ₹ 11.5
5. ₹ 15
6. 1150 paise
7. 115 paise
8. 1500 paise

Q.

The correct symbol for kilogram is

1. Kg

2. KG.

3. kg

4. kG