What are the two types of physical quantities?

Fundamental quantities and derived quantities

Which of the following is a fundamental quantity? A) Area B) Mass C) Speed D) Force

B) Mass

Riddle: I can be measured but have no fixed size, I change with every object and am the basis for many comparisons. What am I?

Length

True or False: Derived quantities depend on other quantities to be defined.

True

The unit of measurement for mass is ______.

Kilogram

What is the SI unit of area?

Square meter (m²)

Which measuring tool is used to measure the diameter of a wire?

Screw gauge

Fill-in-the-blanks: The ______ is a device used to measure time.

Stopwatch

What is the main purpose of using SI units?

To provide a standard measurement system that is consistent worldwide

True or False: Non-standard units were more reliable than standard units.

False. Non-standard units were not reliable because they varied from person to person.

Which of the following is a non-standard unit? A) Metre B) Footstep C) Kilogram D) Litre

B) Footstep

Riddle: I can tell you how hot or cold something is, filled with mercury or alcohol, and I come with scales. What am I?

Thermometer

Fill-in-the-blanks: The ______ of an object is the amount of matter it contains.

Mass

What is the lower fixed point on the Celsius scale?

0°C (freezing point of water)

True or False: A laboratory thermometer has a kink in its capillary tube.

False. A laboratory thermometer does not have a kink.

The relationship between temperature in degree Celsius and Kelvin is expressed as: K = ______.

°C + 273

What is the main function of a beam balance?

To measure the mass of an object by comparing it with standard weights

Which system is commonly used in transportation services to avoid confusion in timings?

24-hour clock system

Fill-in-the-blanks: The process of converting temperature from Celsius to Fahrenheit is done using the formula: °F = (9/5 × ______) + 32.

°C

Riddle: I show the time of day and have hands that move, but I can't tell you how many seconds have passed. What am I?

Clock

True or False: The SI unit of temperature is Celsius.

False. The SI unit of temperature is Kelvin.

What type of thermometer is specifically designed for measuring body temperature?

Clinical thermometer

The difference between the freezing and boiling points of water in the Fahrenheit scale is ______ degrees.

180 degrees

Which of the following is a derived quantity? A) Time B) Temperature C) Speed D) Length

C) Speed

Fill-in-the-blanks: Multiples and submultiples help in measuring very ______ or very ______ physical quantities.

Large, small

What is the SI unit of time?

Second (s)

Riddle: I am measured with a ruler, can be short or long, but I am not a song. What am I?

Length

True or False: The SI units are used exclusively in scientific laboratories.

False. SI units are used all over the world.

What is the formula to calculate the area of a rectangle?

Area = Length × Breadth

Fill-in-the-blanks: The ______ of a shape is the space inside it.

Area

Which unit is used to measure the temperature of boiling water in the Celsius scale?

100°C

What is the importance of ensuring the zero reading on an electronic balance before measuring?

To ensure accurate measurements

True or False: The clinical thermometer reads temperatures from 0°C to 100°C.

False. A clinical thermometer reads from 35°C to 42°C.

What is the primary tool used to measure long lengths of curved objects?

Measuring tape

Fill-in-the-blanks: The ______ of an object is measured in litres.

Volume

What is parallax error?

An error in measurement that arises due to the wrong positioning of the eye.