More cards in this set

What are radio waves used for and why?

Why are radio waves widely used for communication?

What waves are used for wat type of communication?

Explain why digiatl signals are better than analogue signals

What is the heating effect?

How does a microwave work?

What part of the food heats up first in a microwave?

How does infrared radiation link to the greenhouse effect?

What is the equation for photosynthesis?

What is the equation for respiration?