Heat

Question 1

How does heat affect a liquids volume?

Answer 1

When a liquid is heated, it moves quickly and increases its distance because the bond between its molecules are less than a solid. As a result, liquid has more thermal expansion compared to a solid.
When it reaches its boiling point, its attraction becomes weaker, and it turns into a gas which increases its volume even further.

Question 2

How does heat affect a gases volume ?

Answer 2

Since they have a weak attraction, when gas is heated, their particles move farther apart. The expansion of volume of gas is more compared to a liquid in a solid. However, if they were are placed in a container with a fixed volume, it will not expand.

Question 3

Does a solid expand more than a liquid when they come in contact with heat?

Answer 3

No a liquid expands more when it comes in contact with heat.

Question 4

Does a gas expand more than a liquid when it comes in contact with heat ?

Answer 4

Yes, it does when it has free space to move.

Question 5

When a gas is volume, receives heat and it is in a container what happens?

Answer 5

It builds pressure that container, and eventually the container goes kaboom.

Question 6

What is matter?

Answer 6

Matters anything that has mass and takes of space.

Question 7

Are particles of matter, always consistently moving?

Answer 7

Particles of matter, always consistently moving. Even particles of a solid consistently vibrate, although as low in restricted manner due to their limited spacing.

Question 8

Do particles of matter have space between them?

Answer 8

Atoms and molecules have spaces between them. Particles of solid or tightly packed together, that they can hardly move. Meanwhile, particles of a liquid have some space between them, whereas gas particles are far apart from each other.

Question 9

Do particles of matter attract each other?

Answer 9

Particles of matter are attracted to each other by varying degree of force called intermolecular forces of attraction.

Question 10

Do particles of matter move faster when they’re heated?

Answer 10

If you apply heat, particles of matter, vibrate, faster, and behave differently. As the molecules heat up, they gain kinetic energy. Particles move faster and bump into each other, creating more space between them.

Question 11

How is heat measured?

Answer 11

Joules

Question 12

What is the kelvin measurement system?

Answer 12

Scientist, use the kelvin measurement system. It is measured by mercury based or digital thermometers.

Question 13

What temperature is a room normally between?

Answer 13

18°C to 22°C

Question 14

What is waters freezing point?

Answer 14

Waters freezing point is 0°C

Question 15

What is what is waters boiling point?

Answer 15

100°C

Question 16

What is the average body temperature?

Answer 16

37.5°C

Question 17

What are three facts about solids?

Answer 17

Solids are rigid
Have fixed shapes
And have fixed volumes

Question 18

What are three facts about liquids?

Answer 18

They do not have a fixed shape
They are not rigid
But they have a fixed volume

Question 19

What are three facts about gases?

Answer 19

They are not rigid
They have no fixed shapes
They have no fixed volume

Question 20

Can heat affect volume of objects?

Answer 20

Yes, heat affects the volume of different objects and in different ways. Thermal expansion is the increase and volume of objects when heated. Each object has a specific amount of thermal expansion, depending on whether it is a solid gas or liquid.

Question 21

What happens to a solid when it’s molecules are heated?

Answer 21

When Asal is heated, it’s particle. Start to move quickly and become less organized. The spaces between these particles increase so it’s volume also increases solids become larger, and wider when they are heated.

Question 22

Which state of matter has the least thermal expansion?

Answer 22

Solids have the least thermal expansion among the states of matter because of their strong intermolecular attractions

Question 23

What happens when a solid reaches their melting point?

Answer 23

When solid reach their melting point or the temperature where solitary into a liquid, their particles move even faster and their volumes expand.

Question 24

Particles of matter are consistently moving above temperatures of?

Answer 24

-273.15°C or 0 K which is also called absolute zero.

Question 25

What happens to a solid when heat is removed?

Answer 25

It starts to move, slow gain, more attractive forces, such that less vibrations occur in the volume decreases

Question 26

What happens when a liquid is heated?

Answer 26

When he is added, they move particles move, faster, lose their attractive forces such that at its boiling point it becomes a gas and volume increases

Question 27

What happens when heat is removed from a liquid?

Answer 27

It moves, even slower, gains more attractive forces, such that it freezes into a solid and volume decreases

Question 28

What happens when heat is added to a gas?

Answer 28

If in a container, it will continue to build up pressure and increase it temperature and volume increases

Question 29

What happens when he is removed from a gas?

Answer 29

The gas will most of our gain attractive forces such that it condenses turns into a liquid and its volume decreases

Question 30

What are some ways heat can be produced?

Answer 30

He can be produced in many ways, including sunlight, friction, electricity, burning, fossil, fuels, and physical activities.

Question 31

What is the primary source of heat?

Answer 31

Sunlight

Question 32

How does the sun produce heat?

Answer 32

The sun produces heat through a process called nuclear fusion

Question 33

What is nuclear fusion

Answer 33

Hydrogen elements, collide, and transparent transform into helium. This nuclear fusion releases heat that reaches the planet through the through solar radiation. Electromagnetic waves carry the sun energy. It is similar to the heat that you feel when you were next to a fireplace. The heat radiates or send out from the fireplace to your skin.

Question 34

What does friction?

Answer 34

When two objects rub together, their movement transform and heat energy due to friction. Friction is a force that opposes motion between the object that are touching each other.

Question 35

How does friction produce heat?

Answer 35

Friction makes the molecules of objects, move, faster, thus produce heat

Question 36

How does electricity produce heat?

Answer 36

Electricity produces heat when particles like electrons and atoms, collide, and creative resistance, which results in the output of heat and electrical energy.

Question 37

How does the burning a fossil fuels create heat?

Answer 37

The components of the fossil fuels undergo chemical changes and release heat during the burning process. The carbon and hydrogen components of fossil fuels react with the oxygen in the air to form carbon dioxide and water. During this process reaction, the heat is released which further hastens the burning process.

Question 38

How does physical activity create heat?

Answer 38

Your body needs to burn fuels like carbohydrates and fats through series of chemical reactions, which then causes heat or sweat

Question 39

 what is the greenhouse effect?

Answer 39

The greenhouse factor first the warming of the atmosphere due to greenhouse gases

Question 40

What are some examples of greenhouse gases?

Answer 40

Some examples are methane, carbon dioxide, ozone, and nitrous oxide. They trap heat, and warm the earths temperature.

Question 41

What percentage does carbon dioxide count for global warming?

Answer 41

76% of global greenhouse admissions