Heat and Temperature Topics 1-3

Question 1

What is conduction?

Answer 1

Conduction is the transfer of heat through direct contact between materials.

Question 2

True or False: Conduction occurs in fluids.

Answer 2

False

Question 3

Fill in the blank: The transfer of heat through the movement of fluids is called __________.

Answer 3

convection

Question 4

What is convection?

Answer 4

Convection is the transfer of heat by the movement of fluids (liquids or gases).

Question 5

Which method of heat transfer does not require a medium?

Answer 5

Radiation

Question 6

True or False: Radiation can occur in a vacuum.

Answer 6

True

Question 7

What type of materials are good conductors of heat?

Answer 7

Metals are good conductors of heat.

Question 8

Multiple Choice: Which of the following is an example of convection? A) Heating a metal rod B) Boiling water C) Sunlight warming the Earth

Answer 8

B) Boiling water

Question 9

What is thermal conductivity?

Answer 9

Thermal conductivity is a measure of a material’s ability to conduct heat.

Question 10

Fill in the blank: __________ is the process where heat is transferred through electromagnetic waves.

Answer 10

Radiation

Question 11

True or False: Insulators are materials that conduct heat well.

Answer 11

False

Question 12

What are common insulators?

Answer 12

Common insulators include wood, plastic, and rubber.

Question 13

Multiple Choice: Which of the following is NOT a method of heat transfer? A) Conduction B) Convection C) Reflection

Answer 13

C) Reflection

Question 14

What is the main mechanism of heat transfer in metals?

Answer 14

Conduction

Question 15

Fill in the blank: Heat transfer by __________ occurs when warmer areas of a fluid rise and cooler areas sink.

Answer 15

convection

Question 17

What is a thermocouple?

Answer 17

A thermocouple is a device that measures temperature by using two different metals joined at one end.

Question 18

True or False: A bimetallic strip consists of two metals that expand at different rates when heated.

Answer 18

True

Question 19

Fill in the blank: Anders Celsius is known for creating the ______ scale.

Answer 19

Celsius

Question 20

What is the primary use of a thermometer?

Answer 20

To measure temperature.

Question 21

Multiple Choice: Which of the following is a type of thermometer? A) Bimetallic Strip B) Water C) Iron D) Plastic

Answer 21

A) Bimetallic Strip

Question 22

What principle does a bimetallic strip operate on?

Answer 22

The principle of thermal expansion.

Question 23

True or False: Thermograms are visual representations of temperature distribution.

Answer 23

True

Question 24

What is the main advantage of using a thermocouple?

Answer 24

They can measure a wide range of temperatures.

Question 25

Fill in the blank: The Celsius scale is based on the freezing and boiling points of ______.

Answer 25

water

Question 26

Multiple Choice: What does a thermogram display? A) Sound waves B) Temperature distribution C) Light intensity D) Pressure levels

Answer 26

B) Temperature distribution

Question 27

What happens to a bimetallic strip when it is heated?

Answer 27

It bends due to the different expansion rates of the two metals.

Question 28

True or False: The Celsius scale is an absolute temperature scale.

Answer 28

False

Question 29

What materials are commonly used in thermocouples?

Answer 29

Common materials include copper, iron, and constantan.

Question 30

Short Answer: How does a thermometer provide a reading?

Answer 30

It converts temperature changes into a measurable scale.

Question 31

What is one limitation of using a bimetallic strip thermometer?

Answer 31

It may not be as accurate as other types of thermometers.

Question 32

What is the particle model of matter?

Answer 32

The particle model of matter states that all matter is made up of tiny particles that are in constant motion.

Question 33

True or False: The particles in a solid are far apart and move freely.

Answer 33

False: The particles in a solid are close together and vibrate in place.

Question 34

Fill in the blank: In a liquid, particles are _____ than in a solid but still _____ together.

Answer 34

further apart; close

Question 35

What happens to the particles in a gas?

Answer 35

The particles in a gas are far apart and move freely at high speeds.

Question 36

Which state of matter has a definite shape?

Answer 36

Solid

Question 37

True or False: Temperature affects the movement of particles.

Answer 37

True: Higher temperatures increase particle movement.

Question 38

What is the main difference between solids, liquids, and gases?

Answer 38

The main difference is how closely the particles are packed and how they move.

Question 39

Multiple choice: Which of the following states of matter has no definite volume? A) Solid B) Liquid C) Gas

Answer 39

C) Gas

Question 40

What occurs during a phase change?

Answer 40

A phase change occurs when matter changes from one state to another, such as from solid to liquid.

Question 41

Fill in the blank: In solids, particles are packed _____ and vibrate _____ their fixed positions.

Answer 41

closely; around

Question 42

True or False: All matter can be classified into one of three states: solid, liquid, or gas.

Answer 42

True

Question 43

What is the effect of increasing temperature on the state of matter?

Answer 43

Increasing temperature can cause solids to melt into liquids and liquids to evaporate into gases.

Question 44

Multiple choice: What state of matter takes the shape of its container? A) Solid B) Liquid C) Gas

Answer 44

B) Liquid

Question 45

What is the term for the change from liquid to gas?

Answer 45

Evaporation

Question 46

Fill in the blank: The particles in a _____ have enough energy to overcome their attractions and move freely.

Answer 46

gas