MCQs

Explanation
The Fahrenheit scale has 180 divisions between the freezing point (32°F) and the boiling point (212°F) of water. This means that each degree Fahrenheit represents a temperature change of 1/180 of the range between the freezing and boiling points of water.

Explanation
In the Fahrenheit scale : The freezing point of water is 32°F The boiling point of water is 212°F

Explanation
There are three main scales used to measure temperature: Celsius scale : Water freezes at 0°C and boils at 100°C . Fahrenheit scale : Water freezes at 32°F and boils at 212°F . Kelvin scale : Absolute zero (the theoretical minimum temperature) is 0K , and water freezes at 273.15K and boils at 373.15K .

Explanation
A thermometer is typically made up of a glass tube filled with Mercury (Hg), a silvery-white liquid metal. The Mercury expands or contracts in response to changes in temperature , allowing us to measure the temperature.

Explanation
As temperature increases , the heat energy of a substance also increases. This is because temperature is a measure of the average kinetic energy of the particles in a substance , and as temperature increases, the particles gain kinetic energy and therefore heat energy.

Explanation
James Prescott Joule established that the various forms of energy, mechanical, electrical and heat, are basically the same and can be changed from one form into another. He demonstrated that different forms of energy are interchangeable in his most famous experiment, published in 1845, using a paddle wheel to show that mechanical energy could be changed into thermal energy.

Explanation
Heat is measured in Joules (J), which is the unit of energy. Heat is a form of energy transferred from one body to another due to a temperature difference.

Explanation
The properties used to describe heat are: Hot (high temperature) Energy (thermal energy) Cold (low temperature)

Explanation
As a result of the flow of energy (heat) from a region of high temperature to a region of low temperature: the warmer materials cool down and cooler materials warm up. This flow of energy is known as heat transfer. It occurs through conduction , convection, and radiation. As a result, the warmer materials lose energy and cool down, while the cooler materials gain energy and warm up.

Explanation
Heat is a form of energy that flows from a region of high temperature to a region of low temperature. This flow of energy occurs through the transfer of kinetic energy from particles in motion.

Explanation
The Fahrenheit scale has 180 divisions between the freezing point (32°F) and the boiling point (212°F) of water. This means that each degree Fahrenheit represents a temperature change of 1/180 of the range between the freezing and boiling points of water.

Explanation
In the Fahrenheit scale : The freezing point of water is 32°F The boiling point of water is 212°F

Explanation
There are three main scales used to measure temperature: Celsius scale : Water freezes at 0°C and boils at 100°C . Fahrenheit scale : Water freezes at 32°F and boils at 212°F . Kelvin scale : Absolute zero (the theoretical minimum temperature) is 0K , and water freezes at 273.15K and boils at 373.15K .

Explanation
A thermometer is typically made up of a glass tube filled with Mercury (Hg), a silvery-white liquid metal. The Mercury expands or contracts in response to changes in temperature , allowing us to measure the temperature.

Explanation
As temperature increases , the heat energy of a substance also increases. This is because temperature is a measure of the average kinetic energy of the particles in a substance , and as temperature increases, the particles gain kinetic energy and therefore heat energy.

Explanation
James Prescott Joule established that the various forms of energy, mechanical, electrical and heat, are basically the same and can be changed from one form into another. He demonstrated that different forms of energy are interchangeable in his most famous experiment, published in 1845, using a paddle wheel to show that mechanical energy could be changed into thermal energy.

Explanation
Multiply: 0.4 x 710 =​284

Explanation
The result of 340/50 is a terminating decimal with 1 digit to the right of the decimal point. 340 divided by 50 in decimal = 6.8 340 divided by 50 in fraction = 340/50 340 divided by 50 in percentage = 680%

Explanation
To convert 810/500 so you can write it as a decimal, simply divide the numerator by the denominator, like this: = 810/500 = 810 ÷ 500 = 1.62

Explanation
Mohammed Aamir Hussain Khan is an Indian actor, singer, director, filmmaker, and television talk show host. Through his career spanning over 30 years in Hindi films,. Born: March 14, 1965 

Explanation
Engro Corporation, is a conglomerate headquartered in Karachi. Founded as a fertilizer business in 1965, it is one of the largest companies in the Pakistan.

Explanation
The National University of Sciences & Technology is a public research university under administration of Pakistan Armed Forces with its main campus in Islamabad, Pakistan. 

Explanation
 Onyx is actually a type of marble and it has many of the same properties.

Explanation
voice mail, Electronic system for recording oral messages sent by telephone. Typically, the caller hears a prerecorded message and then has an opportunity to leave a message in return.

Explanation
A digital certificate is a notice that guarantees a user or a Web site is legitimate 

Explanation
The main types of social media include big names like Facebook, Instagram, Facebook Messenger, and Twitter.

Explanation
Multiply: 0.4 x 710 =​284

Explanation
The result of 340/50 is a terminating decimal with 1 digit to the right of the decimal point. 340 divided by 50 in decimal = 6.8 340 divided by 50 in fraction = 340/50 340 divided by 50 in percentage = 680%