Light and Waves Worksheet

Worksheet 3:   Light and Waves             Name:____________________


A route is given at the start of a set of activities. This is to help you find the answers. Try the route below :

Solar Fact
files 		Solar Light
Tour 		Radiation

1. In the spaces provided, write possible names for the types of electromagnetic waves labelled A-D

A___________________ B___________________
C___________________ D___________________

2. What is the wavelength of GREEN light? _____________________

3. In the table below, draw a line between the names of different kinds of radiation and their descriptions.

Name
Gamma rays
X-rays
Ultraviolet
Visible light
Infra-red
Microwaves
TV and radio waves
Description
Has most of the energy
Has the longest wavelength
We can see it
Often used for cooking
Feel the heat!
Help us see broken bones
Can give you sunburn

Now try this route to answer the next question.
Solar Fact
files 		Solar Light
Tour 		Spectra

4. Draw a line from the words on the left to the best description of them on the right.
Name
Helium
Emission spectrum
Absorption spectrum
X-rays
Description
Electrons in atoms or ions give out photons
Element discovered by studying light from the Sun
Produced when a gas gets very, very hot
Electrons in atoms or ions absorb photons