6) Kinetic Theory and Heat Transfer

Question 1

What is the conduction?

Answer 1

The energy that is passed from one particle to another via contact

Question 2

What is convection?

Answer 2

When particles rise because of their energy. The space they leave are filled with new particles. If the source continues, they will rise too.

Question 3

What is radiation?

Answer 3

Heat that is transferred as infra-red light

Question 4

How is convection good in our daily life?

Answer 4

Convection is good as it distributes heat energy. For example, a radiator will eventually heat up a whole room.

Question 5

What is an insulator?

Answer 5

Something that is bad at conducting heat; it will keep the temperature for a long period of time. Air is a bad conductor, so anything with air pockets are insulators

Question 6

How do solids turn into a liquid?

Answer 6

When solid particles gain energy, they move a lot more. This means that if they move enough, then they will bounce off each other and form a liquid.

Question 7

How do liquids turn into a gas?

Answer 7

When liquid particles gain energy, they move lot more. This means that if they move enough, then they will bounce off each other and form a gas.

Question 8

What are the arrangements and motions of particles in a solid?

Answer 8

Low amounts of energy, they have little movement, they vibrate on the spot

Question 9

What are the arrangements and motions of particles in a liquid?

Answer 9

Some energy and movement, particles collide, bouncing apart and creating space between particles

Question 10

What are the arrangements and motions of particles in a gas?

Answer 10

Lots of energy and mvoement, particles collide a lot, bouncing apoart more creating more space between particles