Microwaves are Used for Satellite Communication and Heating Food

Question 1

How long are the wavelengths of a microwave?

Answer 1

Around 1-10 cm

Question 2

What can microwaves be used for?

Answer 2

Communication

Question 3

What uses microwaves?

Answer 3

Satellite communication (including satellite TV and satellite phones)

Question 4

What do the signals do from a satellite TV?

Answer 4

The signals from a transmitter is transmitted into space, where it’s picked up by the satellite receiver dish orbiting thousands of kilometres above earth

Question 5

What can mobile phone calls also travel as and to where?

Answer 5

Microwaves from your phone to the nearest transmitter

Question 6

What are microwaves also used for?

Answer 6

Cooking

Question 7

What are these microwaves absorbed by?

Answer 7

The water molecules in the food

Question 8

What do the microwaves do?

Answer 8

Penetrate a few centimetres into the food before being absorbed

Question 9

What is then done with the energy?

Answer 9

It is then conducted or connected to other parts of the food