Paper Q

Question 1

What are poor conductors of heat no as?

Answer 1

Insulators

Question 2

What is hear energy conducted from?

Answer 2

The hot end to the cold end

Question 3

What can particles in fluids do

Answer 3

More form place to place

Question 4

Convection occurs when?

Answer 4

Particles with a lot of heat energy in a liquid or gas move and take the place of particles with less heat energy

Question 5

What is the specific heat capacity of a substance?

Answer 5

Is the amount of energy needed to change the temperature of 1kg of the substances by 1 degree

Question 6

What is the measurement

Answer 6

J / Kg degree

Question 7

What’s the lowest frequency and energy and the longest wave length?

Answer 7

Radio waves

Question 8

What’s the highest energy and frequency and the shortest wavelength?

Answer 8

Gamma radiation

Question 9

What are radio waves used for

Answer 9

Television signals

Question 10

What are microwaves used for

Answer 10

Cooking, Mobile phones

Question 11

What is infrared used for?

Answer 11

Optical fibre communication

Question 12

What is visible light used for?

Answer 12

Seeing

Question 13

What is ultraviolet used for

Answer 13

Defecting forged bank note

Question 14

What are x-Rays used for?

Answer 14

Medical images of bones

Question 15

What is gamma radiation used for?

Answer 15

Killing cancer cells

Question 16

What aren’t good conductors of heat

Answer 16

Non-metals and gases