physics term 2 cat 1

Question 1

What are the three states of matter?

Answer 1

Solid, Liquid, Gas

Question 2

Describe the particle arrangement in a solid.

Answer 2

Particles are tightly packed, vibrate in fixed positions, strong forces between them.

Question 3

Describe the particle arrangement in a liquid.

Answer 3

Particles are close but can slide past each other, weaker forces than solids.

Question 4

Describe the particle arrangement in a gas.

Answer 4

Particles are far apart, move freely, weak forces between them.

Question 5

Define a thermal conductor.

Answer 5

A material that allows heat to pass through easily.

Question 6

Give three examples of thermal conductors.

Answer 6

Copper, Aluminium, Iron

Question 7

Define a thermal insulator.

Answer 7

A material that slows down heat transfer.

Question 8

Give three examples of thermal insulators.

Answer 8

Wood, Plastic, Wool

Question 9

Give 3 advantages of thermal conductors.

Answer 9

1) Transfer heat quickly, 2) Even heat distribution, 3) Efficient energy use

Question 10

Give 3 advantages of thermal insulators.

Answer 10

1) Reduce heat loss, 2) Safety (prevent burns), 3) Maintain temperature

Question 11

Why are metals good thermal conductors?

Answer 11

They have free electrons that transfer energy quickly through the material.

Question 12

Why do insulators like wood or wool slow heat transfer?

Answer 12

Particles are far apart and they often trap air, which is a poor conductor of heat.