Physical Quantity

Q.

Why does the same physical quantity have various units?

Q. Which of the following is/are a physical quantity?

1. Mass
2. Distance
3. Time
4. All the above

Q.

Which of the given are physical quantities?

1. 
2. 
3. 
4. 

Q.

The standard unit of area is $—$

Q.

Any 5 practical units of (length, mass and time)

Q. ___ is the measurement or extent of an object from end to end.

Q. Number of fundamental units are _____.

1. 5
2. 7
3. 3
4. 8

Q.

Every measurement involves two things -a number and a unit.

1. True
2. False

Q.

What is the SI prefix for each of the following multiples and submultiples of a unit?

(e)${10}^{-9}$

Q. Which unit is used to measure mass?

1. Kilogram
2. Meter
3. Second
4. Mole

Q.

In the SI system of units, the unit of length is _______.

1. foot

2. yard

3. metre

4. cubit

Q.

Any quantity which we measure in the study of physics is called

1. Measurable quantity

2. Physical quantity

3. Material quantity

4. Natural quantity

Q.

The area of a square is $16c{m}^2$. The area of the rectangle with length equal to double the side of the square and breadth equal to half of the side of the square is ___$c{m}^2$

1. 12

2. 16

3. 26

4. 32

Q.

The quantity that can be measured is called physical quantity.

1. True
2. False

Q. Which of the following represent/s units of time?

1. Metre
2. Second
3. Milli-second
4. Kilogram

Q.

Given that A has dimensions of length and B has dimensions of mass. Which mathematical operation given below is physically meaningful?

1. A + B
2. A − B
3. A/B
4. None

Q.

Given the area of a circle is $36c{m}^2$. The area of the rectangle is $\frac{1}{6}$^th of the area of the circle. If the breadth of the rectangle is $1cm$, what is the length?

1. $12cm$

2. $16cm$

3. $26cm$

4. $6cm$

Q.

What is physical quantity?

Q.

The area of the rectangle with length $11cm$ and breadth equal to half its length will be

1. $22c{m}^2$

2. $33c{m}^2$

3. $60.5cm$

4. $60.5c{m}^2$

Q. The extent of surface enclosed by a closed figure is called its ________.

1. length
2. volume
3. perimeter
4. area

Q.

What is the difference between $4sqcmand4cmsquare?$

Q. What is the length of the wood?

1. 3.5 cm
2. 3 cm
3. 2 cm
4. 1 cm

Q.

$1squaremetre$ is the area of a________with a side of $1m.$

Q.

Metric system was introduced in:

1. France

2. England

3. America

4. India

Q. According to conversion of units of measurement:
$1kg$ = ____ $grams$

1. $10$
2. $100$
3. $1000$
4. $0.1$

Q.

According to conversion of units of measurement:
$1mm$=____ $cm$

1. $10$

2. $0.1$

3. $1000$

4. $100$

Q. If there are $10$ minor divisions between two major divisions, one major division representing $1$℃, one minor division will be equal to

1. $1.1℃$
2. $1℃$
3. $0.1℃$
4. $0.01℃$

Q.

The thickness of a dozen coins on a metre scale was found to be $18cm$. What is the thickness of one coin?

1. $15cm$
2. $1.2cm$
3. $1.8mm$
4. $15mm$

Q. A physical quantity necessarily has a dimension.

1. True
2. False

Q.

Temperature is one of the seven fundamental quantities

1. True
2. False