WorksheetsLight: Forces & Energy
Total questions: 10
Worksheet time: 20mins
Name
Class
Date
1.
Light travels in _____ lines from a source.
a)
straight
b)
wave
2.
The penumbra is the middle part of a shadow.
a)
True
b)
False
3.
Water in a swimming pool and a straw in a glass are examples of refractions.
a)
True
b)
False
4.
This is caused by the refraction of light by a layer of hot air near the ground.
a)
mirage
b)
rainbow
5.
A typical form of theater in _____ is the shadow puppets.
a)
Europe
b)
Asia
6.
The penumbra is the outside area of shadow.
a)
True
b)
False
7.
Mirrors can be used to change the direction of light.
a)
True
b)
False
8.
The girl is using a:
a)
telescope
b)
periscope
9.
At how many degrees you should place the mirrors in a periscope?
a)
90 degrees
b)
45 degrees
10.
This is a synonym of glasses:
a)
spectacles
b)
shades
100 %
