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Units and Measurement Practice Questions for Super TET

A practice session solving important multiple-choice questions on distance, speed, physical quantities, and measurement units. Covers conversions between metric and imperial units as well as scientific measuring instruments. Designed specifically for the Uttar Pradesh primary teacher recruitment exam (Super TET).

Teaching
Science
English · 7 topics
Checked against the video on 25 Oct 2026

Made by AI from the YouTube video UP SUPERTET SCIENCE Class-9 | दूरी & मापन 40 MCQ DISTANCE & MEASUREMENT | UP प्राथमिक शिक्षक भर्ती (opens YouTube in a new tab) by Balaji Study Adda, then checked against it. All credit for the teaching goes to the creator. Tap a topic’s time to confirm a fact in the video.

Units and Measurement Practice Questions for Super TET

English7 topics · 8 MCQs · 12 flashcardsWatch the video (opens YouTube in a new tab)

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In short

A practice session solving important multiple-choice questions on distance, speed, physical quantities, and measurement units. Covers conversions between metric and imperial units as well as scientific measuring instruments. Designed specifically for the Uttar Pradesh primary teacher recruitment exam (Super TET).

Astronomical Units and Distance Measurement

Must knowThe largest unit used for measuring distance is the parsec, where 1 parsec equals 3.26 light years.
Parsecs are primarily utilized in astronomy to quantify exceptionally large distances between celestial bodies.
A light year is defined as the total distance traveled by light in a vacuum in one year, making it a unit of distance rather than time.
Must knowThe precise value of 1 light year is 9.46 × 10¹⁵ meters.
Distance covered by vehicles is tracked using an odometer, which presents the total cumulative distance on a dashboard in kilometers.
An astronomical unit (AU) represents the average distance between the Sun and the Earth, with a value of approximately 1.496 × 10¹¹ meters.

Displacement, Motion, and Microscopic Units

Displacement is the minimum distance between the initial and final position of an object, and as a vector quantity, its value can be positive, negative, or zero.
Must knowOne nanometer (nm) equals 10⁻⁹ meters, commonly used to describe the microscopic scale of molecules, atoms, and viruses.
A micrometer or micron equals 10⁻⁶ meters, while an angstrom (A) equals 10⁻¹⁰ meters.
Angstroms are specifically used to measure the wavelength of light.
Speed is defined as the distance traveled per unit time; being a scalar quantity, its SI unit is meter per second (m/s).
Velocity is the distance traveled in a specified direction per unit time, formulated as displacement divided by time, and is a vector quantity.

Measurement Devices: SONAR, Screw Gauge, and Calibrations

Must knowSONAR stands for Sound Navigation and Ranging, utilizing ultrasonic waves to measure ocean depths and locate submerged objects.
A screw gauge measures minute dimensions such as the diameter of thin wires or sheet thickness, with a standard least count of 0.001 cm.
In the British measurement system, 1 inch equals 2.54 centimeters.
Because 1 foot contains 12 inches, 1 foot equals 30.48 centimeters (12 × 2.54 cm).
A fathom is a nautical unit of depth representing 6 feet or approximately 1.8288 meters, historically used by sailors.

Metric Conversions and Fundamental SI Units

One kilometer contains approximately 0.621 miles, whereas 1 mile equals approximately 1.609 kilometers.
Miles are predominantly used for road distances in countries like the United States and the United Kingdom.
Must knowUnder the International System of Units (SI), there are exactly 7 fundamental units: length (meter), mass (kilogram), time (second), electric current (ampere), temperature (kelvin), luminous intensity (candela), and amount of substance (mole).
A nautical mile equals 1.852 kilometers, used specifically for maritime and aviation navigation, making it longer than a statutory land mile (1.609 km).
A fermi equals 10⁻¹⁵ meters, serving as one of the smallest distance units and applied to determine nuclear dimensions.
Both the SI and CGS metric systems share the exact same standard unit for time, which is the second.

Land, Pressure, and Atmospheric Instruments

In imperial measurement, 1 yard (gaj) contains 3 feet or 36 inches, which equates to roughly 0.9144 meters.
Earthquake intensity is measured on the Richter scale, a logarithmic scale spanning 1 to 9, recorded via an instrument known as a seismograph.
One hectare is a metric unit of land area equivalent to a square of 100 meters by 100 meters, totaling 10,000 square meters.
Atmospheric pressure is measured using a barometer, where a sudden plummet in reading serves as an indicator of an approaching storm.
An anemometer (pawan-vegmapi) is a meteorological instrument utilized to calculate wind speed and force.
To convert speed from kilometers per hour (km/h) to meters per second (m/s), multiply by the fraction 5/18; multiply by 18/5 for the reverse conversion.

Fluid Measurement, Motion Types, and Blood Pressure

A pendulum clock operates on periodic motion (aavarti gati) or oscillatory motion (dolan gati), swinging back and forth around a mean position.
A lactometer is a specialized hydrometer functioning on Archimedes' principle to gauge milk purity and relative density.
Frequency is the count of oscillations or vibrations executed per second, having the SI unit hertz (Hz); normal human ears detect sounds from 20 Hz to 20,000 Hz.
An ammeter measures electrical current in amperes and must invariably be connected in series inside a circuit.
Must knowExtremely high temperatures, such as the surface temperature of the Sun or blast furnaces, are determined via a pyrometer through incoming thermal radiation.
Relative humidity in the atmosphere is measured using a hygrometer, distinct from a hydrometer, which measures the relative density of liquids.
Standard human blood pressure is measured as 120/80 mmHg using an instrument called a sphygmomanometer.

Volume, Prototype Standards, and Units of Mass

Standard volume relationships establish that 1 liter equals 1,000 cubic centimeters (cm³ or cc), while 1 cubic meter (m³) equals 1,000 liters.
The standard prototype meter scale preserved in Sèvres, France, is constructed from an alloy of platinum and iridium (Pt-Ir) due to its resistance to rust and thermal expansion.
One quintal equals 100 kilograms, and 1 metric ton equals 1,000 kilograms (or 10 quintals).
The FPS system (Foot-Pound-Second) is historically referred to as the British system of measurement.
Rectilinear motion describes an object moving along a straight line path without a change in direction, such as a vehicle moving along a straight roadway.
A decameter represents 10 meters, while a hectometer equals 100 meters.
Standard normal human body temperature registers at 98.6°F on the Fahrenheit scale, corresponding to 37°C on the Celsius scale and 310 K on the Kelvin scale.

Key terms

Parsec: The largest unit of distance, equal to 3.26 light years, used in astrophysics.
Light Year: The distance light travels through vacuum in one calendar year (9.46 × 10¹⁵ m).
Astronomical Unit: The average distance between the Sun and the Earth (approx. 1.496 × 10¹¹ m).
SONAR: Sound Navigation and Ranging system using ultrasound to map depths and spot undersea objects.
Pyrometer: A non-contact thermometer that calculates extremely high temperatures via emitted thermal radiation.
Hygrometer: An instrument used to measure atmospheric humidity and moisture content.
Hydrometer: An instrument used to determine the specific gravity or relative density of liquids.
Sphygmomanometer: A medical device used to measure arterial blood pressure.

Formulas

Speed = Distance / Time: Calculating standard scalar motion
Velocity = Displacement / Time: Calculating directional vector motion
km/h to m/s = Speed in km/h × (5 / 18): Unit conversion of speed
m/s to km/h = Speed in m/s × (18 / 5): Unit conversion of speed

Quick revision

Read these the night before the exam.

1 parsec is equal to 3.26 light years.
1 light year equals 9.46 × 10¹⁵ meters.
1 nanometer equals 10⁻⁹ meters, while 1 angstrom equals 10⁻¹⁰ meters.
The SI system contains exactly 7 fundamental units.
A sudden drop in a barometer reading indicates an incoming storm.
1 nautical mile equals 1.852 km, whereas 1 statute mile equals 1.609 km.
1 hectare is equivalent to 10,000 square meters.
Normal human body temperature is 98.6°F, 37°C, or 310 K.
An ammeter is always attached in series to evaluate current in amperes.
Normal adult human blood pressure is 120/80 mmHg.

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दैनिक जीवन में विज्ञान (Super TET सम्पूर्ण अल्टीमेट मास्टर नोट्स)
यह वीडियो प्राथमिक शिक्षक भर्ती (Super TET) के विज्ञान विषय के पहले टॉपिक 'दैनिक जीवन में विज्ञान' का सैद्धांतिक अध्ययन कराता है। इसमें ताप-मापन, ऊन निर्माण प्रक्रिया, प्रमुख मापक यंत्र, मात्रक एवं भौतिक राशियां विस्तार से समझाई गई हैं। साथ ही NCERT और SCERT पर आधारित महत्वपूर्ण रसायन, अम्ल, सूचक, मिश्रधातुएं और प्लास्टिक से संबंधित तथ्य प्रस्तुत किए गए हैं।
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