Standardization of Measurement

Q.

Give five differences between fundamental quantity and derived quantity.

Q.

Convert the following speeds from $Km/h$ to $m/s$

$180Km/h$

Q. In the SI system, length, mass, and time are measured as:

1. $m$, $kg$, $s$
2. $cm$, $g$, $min$
3. $km$, $g$, $hr$
4. $mm$, $kg$, $hr$

Q.

What is $210\mathrm{mm}$ in $\mathrm{cm}$?

Q.

One centimetre is divided into 10 equal parts called ______.

Q.

Express the speed $72km/hr$ in $m/s$ ($\mathrm{metres}\mathrm{per}\mathrm{second}$).

Q. What are the two important components of measurement?

1. The motion of the measurement and the time of the measurement.
2. The value of the measurement and the unit of the measurement
3. The instrument of measurement and the time of measurement
4. The unit of the measurement and the instrument of measurement.

Q. Which among the following is a standard tool for measuring distance?

1. Span
2. Foot
3. Metre scale
4. Cubit

Q. Length is a quantity that consists of.

1. only unit
2. only magnitude
3. magnitude and unit

Q. Select the ancient units of measurement of length.

1. Cubit
2. Kilometer
3. Centimeter
4. Meter
5. Hand span
6. Palm
7. Foot
8. Yard

Q.

The standard unit of length is millimeter.

1. True
2. False

Q. Metre is the SI unit of
(a) mass
(b) volume
(c) length
(d) weight

Q. Arrange the following in increasing order of magnitude.

1. 36 cm
2. 3.8 m
3. 5030 mm
4. 0.0004 km

Q.

The distance between two cities is measured in metres?

1. True
2. False

Q.

Name two submultiple of metre?

Q.

Convert the following speeds from $Km/h$to $m/s$

$144Km/h$

Q. Explain two methods that you can use to measure the length of a curved line. [5 marks]

Q.

The length of the path travelled by a body is known as __________.

1. position

2. reference point

3. speed

4. distance

Q.

Convert the following speeds from $Km/h$ to $m/s$

$360Km/h$

Q.

The length of the path travelled by a body is known as __________.

1. reference point

2. speed

3. distance

4. position

Q. Which of the following is/are unit(s) for measuring length?

1. Mile
2. Litre
3. Feet
4. Kilometre

Q. Which of the following is a decimal submultiple of a metre?

1. centimetre
2. kilometre
3. millimetre
4. hectometre

Q.

The length of the path travelled by a body is known as __________.

1. distance

2. position

3. speed

4. reference point

Q. helps us to put values for various quantities such as length, mass, temperature and many more.

1. Measurement
2. Science
3. Intuition

Q. SI unit of length is _______.

1. metre
2. kilometre
3. centimetre
4. millimetre

Q. is the physical quantity used to describe how far a body has travelled.

1. Distance
2. Time
3. Speed

Q. Which among the following is a standard tool for measuring distance?

1. Span
2. Foot
3. Metre scale
4. Cubit

Q. Length is a measure of how far an object traveled.

1. True
2. False

Q. For measuring long distances across cities, we can use ________ as a unit.

1. centimetre (cm)
2. metre (m)
3. millimetre (mm)
4. kilometre (km)

Q. $0.25gc{m}^{-3}=\underset{–}{}kg{m}^{-3}$

1. $25$

2. $2500$

3. $250$

4. $2.5$