Question 1

You wish to heat a glass of water to make a cup of tea.How much energy is needed to raise
the temperature of 500ml of tap water from $13 ^ { \circ } \mathrm { C } \text { to } 100 ^ { \circ } \mathrm { C }$ ?

Accepted Answer

The answer of You wish to heat a glass of...

Question 2

In general, as the temperature of a material is increased, the material's length will
A)increase
B)decrease
C)remain the same

Accepted Answer

As the temperature of a material increases, the particles in the material gain energy and begin to vibrate faster, causing an increase in the average distance between them. This increase in distance leads to an increase in the overall length of the material.

Question 3

The amount of heat required to raise the temperature of 1g of water by 1°C is known as a
A)Btu
B)calorie
C)Calorie
D)Joule

Accepted Answer

The unit of heat required to raise the temperature of 1g of water by 1°C is known as a calorie (lowercase c). A Btu (British thermal unit) is a unit of energy used in the United States and is equal to approximately 1055 J (joules). A Calorie (uppercase C) is a unit of energy commonly used in nutrition to describe the energy content of foods, and is equal to 1000 calories (lowercase c) or 4184 J (joules). While joules are a unit of energy, they are not commonly used to describe heat in the context of raising the temperature of water.

Question 4

Before taking a bite of a piece of hot pizza you blow on it to cool it off by transferring heat out of the pizza.What mode of heat transfer is responsible for this?
A)conduction
B)convection
C)radiation
D)none of the above

Accepted Answer

Convection is responsible for the heat transfer when you blow on hot pizza. The movement of air carries away the heat from the surface, cooling it down.

Question 5

Most conventional fuels that we use today to generate power come from coal, natural gas, oil,
or gasoline.

Accepted Answer

Conventional fuels used for power generation include coal, natural gas, oil, and gasoline.

Question 6

The physical measurement that is intended to account for the combined effect of wind speed and air temperature is known as
A)Dew point
B)Ambient conditions
C)Wind chill index
D)Relative temperature

Accepted Answer

The answer of The physical measurement that is intended to...

Question 7

A unit commonly used to express the metabolic rate for an average person under sedentary conditions is called a. metab $_ { a vg }$
b. $m r _ { a v g }$
c. met
d. msed

Accepted Answer

The answer of A unit commonly used to express the...

Question 8

The term that is used to quantify the amount of energy that is released when a unit mass or a unit volume of fuel is burned is known as
A)heating value
B)specific heat
C)specific mass
D)specific volume

Accepted Answer

The term used to quantify the amount of energy released when a unit mass or a unit volume of fuel is burned is referred to as the heating value. It is sometimes also known as the calorific value or energy value of the fuel.

Question 9

If you stay out to long at the beach you may get a sunburn as a result of too much heat being transferred to your skin.What mode of heat transfer is responsible for this?
A)conduction
B)convection
C)radiation
D)none of the above

Accepted Answer

Radiation is the mode of heat transfer responsible for sunburn as the sun emits infrared radiation which is absorbed by the skin, causing a rise in temperature and resulting in sunburn. Conduction and convection involve the transfer of heat through direct contact or movement of heated particles, which is not relevant in this scenario.

Question 10

What is the SI unit of energy?
A)calorie
B)Watt
C)Btu
D)Joule

Accepted Answer

The SI unit of energy is Joule. It is defined as the amount of work done by a force of one Newton to move an object one meter in the direction of the force. It is a standard unit in the International System of Units (SI) and is used widely in both physics and engineering.

Question 11

A unit that is generally used to express the insulating value of clothing is called a. clo
b. ciu
c. $c  { - i n s }$
d. $\mu _ { \text {clo } }$

Accepted Answer

The answer of A unit that is generally used to...

Question 12

The physical quantity that provides a quantitative way to show how much thermal energy is required to raise the temperature of an object by a certain amount is
A)thermal conductivity
B)specific heat
C)specific weight
D)density

Accepted Answer

The physical quantity that provides a quantitative way to show how much thermal energy is required to raise the temperature of an object by a certain amount is specific heat. Thermal conductivity is the measure of how quickly a material can conduct heat, specific weight is the weight per unit volume of a material, and density is the measure of how much mass is contained in a given volume. Therefore, specific heat is the best choice.

Question 13

In general, as the temperature of a material is increased, the material's volume will
A)increase
B)decrease
C)remain the same

Accepted Answer

As the temperature increases, the atoms/molecules in the material will begin to vibrate more rapidly, causing them to spread out and increase the space between them. This results in an increase in volume, making choice A the correct answer.

Question 14

When you touch a hot stove with your finger you get burned by the heat transferred to your finger.What mode of heat transfer is responsible for this?
A)conduction
B)convection
C)radiation
D)none of the above

Accepted Answer

Conduction is the mode of heat transfer that occurs when there is direct contact between two objects with different temperatures. In this case, heat is transferred from the hot stove to your finger through conduction. Convection and radiation are not applicable in this situation as there is no movement of fluid or emission of electromagnetic waves involved.

Question 15

Calculate the specific heat of water?

Accepted Answer

The answer of Calculate the specific heat of water?...

Question 16

The mode of heat transfer that occurs when a fluid in motion comes into contact with a solid surface whose temperature differs from the moving fluid is known as
A)conduction
B)convection
C)radiation
D)none of the above

Accepted Answer

This phenomenon is known as forced convection. Convection involves the transfer of heat through fluids (liquids and gases). When a fluid is in motion, it can carry heat from one location to another. In forced convection, the fluid is forced to move by an external source such as a pump, a fan or a compressor. When the moving fluid comes into contact with a solid surface whose temperature is different from the fluid, heat is transferred from the solid to the fluid or vice versa, depending on the temperature difference. This mode of heat transfer is known as forced convection.

Question 17

The mode of heat transfer that occurs when a temperature difference exists in a medium is known as
A)conduction
B)convection
C)radiation
D)none of the above

Accepted Answer

The answer of The mode of heat transfer that occurs...

Question 18

How much energy is required to raise the temperature of 3kg of aluminum from $20 ^ { \circ } \mathrm { C }$ to $50 ^ { \circ } \mathrm { C }$ ?

Accepted Answer

The answer of How much energy is required to raise...

Question 19

A steel bridge is 180 m long when the temperature is $- 1.1 ^ { \circ } \mathrm { C }$ By how much will its length
increase when the temperature is 37.8°C? (Steel has a coefficient of linear expansion of $\left. 11 ^ { \times } 10 ^ { - 6 } / ^ { \circ } \mathrm { C } \right)$

Accepted Answer

The answer of A steel bridge is 180 m long...

Question 20

The mode of heat transfer that occur through electromagnetic waves is known as
A)conduction
B)convection
C)radiation
D)none of the above

Accepted Answer

Electromagnetic waves transfer heat through radiation. This type of heat transfer does not require a medium and can occur through a vacuum. Examples of radiation include the heat from the sun and heat from a fire.

Quiz 11: Temperature and Temperature-Related Parameters Temperature As a Fundamental Dimension

You wish to heat a glass of water to make a cup of tea.How much energy is needed to raise the temperature of 500ml of tap water from 13∘C to 100∘C13 ^ { \circ } \mathrm { C } \text { to } 100 ^ { \circ } \mathrm { C }13∘C to 100∘C ?

In general, as the temperature of a material is increased, the material's length will

The amount of heat required to raise the temperature of 1g of water by 1°C is known as a

Before taking a bite of a piece of hot pizza you blow on it to cool it off by transferring heat out of the pizza.What mode of heat transfer is responsible for this?

Most conventional fuels that we use today to generate power come from coal, natural gas, oil, or gasoline.

The physical measurement that is intended to account for the combined effect of wind speed and air temperature is known as A)Dew point B)Ambient conditions C)Wind chill index D)Relative temperature

A unit commonly used to express the metabolic rate for an average person under sedentary conditions is called a. metab avg_ { a vg }avg​ b. mravgm r _ { a v g }mravg​ c. met d. msed

The term that is used to quantify the amount of energy that is released when a unit mass or a unit volume of fuel is burned is known as

If you stay out to long at the beach you may get a sunburn as a result of too much heat being transferred to your skin.What mode of heat transfer is responsible for this?

What is the SI unit of energy?

A unit that is generally used to express the insulating value of clothing is called a. clo b. ciu c. c−insc { - i n s }c−ins d. μclo \mu _ { \text {clo } }μclo ​

The physical quantity that provides a quantitative way to show how much thermal energy is required to raise the temperature of an object by a certain amount is

In general, as the temperature of a material is increased, the material's volume will

When you touch a hot stove with your finger you get burned by the heat transferred to your finger.What mode of heat transfer is responsible for this?

Calculate the specific heat of water?

The mode of heat transfer that occurs when a fluid in motion comes into contact with a solid surface whose temperature differs from the moving fluid is known as

The mode of heat transfer that occurs when a temperature difference exists in a medium is known as

How much energy is required to raise the temperature of 3kg of aluminum from 20∘C20 ^ { \circ } \mathrm { C }20∘C to 50∘C50 ^ { \circ } \mathrm { C }50∘C ?

The mode of heat transfer that occur through electromagnetic waves is known as

You wish to heat a glass of water to make a cup of tea.How much energy is needed to raise the temperature of 500ml of tap water from $13 ^ { \circ } \mathrm { C } \text { to } 100 ^ { \circ } \mathrm { C }$ ?

A unit commonly used to express the metabolic rate for an average person under sedentary conditions is called a. metab $_ { a vg }$ b. $m r _ { a v g }$ c. met d. msed

A unit that is generally used to express the insulating value of clothing is called a. clo b. ciu c. $c { - i n s }$ d. $\mu _ { \text {clo } }$

How much energy is required to raise the temperature of 3kg of aluminum from $20 ^ { \circ } \mathrm { C }$ to $50 ^ { \circ } \mathrm { C }$ ?