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Worksheets7th grade final
Total questions: 25
Worksheet time: 13mins
Name
Class
Date
1.
The _____ is the layer of earth's atmosphere that is closest to Earth's surface
a)
troposphere
b)
stratosphere
c)
exosphere
d)
ionosphere
2.
The buildup of electrical charges on an object is called a
a)
static charge
b)
circuit charge
c)
current circuit
d)
current charge
3.
Normally atoms are electrically neutral because they are _____.
a)
more electrons than protons
b)
equal number of protons and electrons
c)
equal number of protons and neutrons
d)
more protons than electrons
4.
Our bodies are conductors of electrical energy.
a)
True
b)
False
5.
The interaction of air, water and _____ causes weather.
a)
humidity
b)
wind
c)
the Sun
d)
land
6.
One good example of a good conductor is ____.
a)
wood
b)
glass
c)
coppper
d)
rubber
7.
One example of a good conductor is _____.
a)
wood
b)
copper
c)
glass
d)
rubber
8.
_____ forms when raindrops pass through a layer of freezing air ear Earth's surface, forming ice pellets.
a)
Hail
b)
Sleet
c)
Fog
d)
Rain
9.
The boundary between cold and warm air masses is called a ___.
a)
climate
b)
front
c)
storm
d)
flood
10.
High pressure means good weather because ____.
a)
clouds are blown away by wind
b)
the air masses rise
c)
air masses sink, making it hard to for clouds
d)
none of the above
11.
Violent storms generally form along ____.
a)
warm fronts
b)
occluded fronts
c)
stationary fronts
d)
cold fronts
12.
The temperature at which air is saturated and condensation forms
a)
fog
b)
snow
c)
dew point
d)
cloud
13.
Forms when millions of water droplets become suspended in air and collect around small dust particles.
a)
fog
b)
cloud
c)
snow
d)
dew point
14.
Area of less dense, warm air that can be forced upward
a)
areas of low pressure
b)
areas of high pressure
c)
relative humidity
d)
dew point
15.
Stratus cloud that forms when air condenses near the ground
a)
hail
b)
cloud
c)
dew point
d)
fog
16.
Houses, school, and other buildings are wired using parallel circuits
a)
True
b)
False
17.
The human body is a conductor
a)
True
b)
False
18.
An electric current releases energy in one quick burst
a)
False
b)
True
19.
The rule of electric charges can be stated as "like charges attract and unlike charges repel"
a)
False
b)
True
20.
An electric shock can be much more harmful when the skin is dry than if it is wet
a)
True
b)
False
21.
Electrical current generally increases as voltage increases
a)
True
b)
False
22.
A series circuit has more than one path for the electric current to flow
a)
True
b)
False
23.
Atmosphere layers are distinguished by their ____.
a)
altitude
b)
temperature
c)
compostition
d)
all of the above
24.
Two objects will attract one another when they have ____
a)
no charge
b)
like charges
c)
the same amount of charge
d)
opposite charges
25.
Buildup of electric charge on an object
a)
static charge
b)
resistance
c)
insulator
d)
electric field
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