WorksheetsWaves Unit 3 Test
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
What happens when light hits a back t shirt?
a)
refraction
b)
absorption
2.
The internet travels on FIBER OPTIC cables through the ______ to the IP ADDRESS on your device
a)
air
b)
ocean
3.
The glass of a fish tank is clear and ______
a)
transparent
b)
opaque
4.
Which has a longer wavelength?
a)
Microwave
b)
X Ray
5.
Which type of EM wave is used in cell phones?
a)
Microwave
b)
Infrared
6.
Which EM waves are the only light humans can see?
a)
Visible Light
b)
Infrared
7.
Which type of EM wave is used in nuclear energy and is used in cancer treatment to kill cancer cells?
a)
X rays
b)
gamma ray
8.
When light goes through a surface but bends it is called ___
a)
refraction / transmission
b)
reflection
9.
The _________ is a measurement of how long the waves are.
a)
wavelength
b)
trough
10.
Which has more energy?
a)
infrared
b)
visible light
11.
Which has more energy?
a)
Gamma ray
b)
microwaves
12.
Every day you are exposed to electromagnetic energy in the form of __________.
a)
light
b)
waves
13.
You can see all types of light waves on Electromagnetic Spectrum.
a)
True
b)
False
14.
Electromagnetic Waves are caused by vibration of charged particles. They are important in technology and medicine.
a)
True
b)
False
15.
Which EM rays are used by doctors to see your bones?
a)
X Rays
b)
Ultraviolet
16.
This surface is ________ and would not allow light to pass through.
a)
opaque
b)
translucent
17.
Which EM waves cause sunburn?
a)
Gamma rays
b)
Ultraviolet
18.
Repeating patterns of 0s and 1s that send information through digital devices are called ____ code.
a)
morse
b)
binary
19.
Which type of EM wave is used in daily life for satellite antennae and radios?
a)
radio
b)
gamma ray
20.
When you send an image through text to a friend, his phone ________ the message sent in binary code.
a)
decodes
b)
sends
100 %
