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WorksheetsModel of Matter- The Particulate Nature of Matter
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
Which of the following substances did Robert Brown observed upon forming the concept of Brownian motion?
a)
Talc powder suspended in water
b)
Pollen grains suspended in water
c)
Talc powder suspended in air
d)
Pollen grains suspended in air
2.
He concluded that collision between water particles (unseen) and the pollen grains (seen) causes the movement of pollen grains in water.
a)
Robert Brown
b)
Albert Einstein
3.
Particles of all matter are in constant random motion.
a)
True
b)
False
4.
These particles are held together be very strong forces of attraction
a)
Solid
b)
Liquid
c)
Gas
d)
Plasma
5.
It has no definite shape or volume
a)
Solid
b)
Liquid
c)
Gas
d)
Plasma
6.
Their particles are packed closely together without a fixed regular pattern
a)
Solid
b)
Liquid
c)
Gas
d)
Plasma
7.
It is the densest among all state of matter
a)
Solid
b)
Liquid
c)
Gas
d)
Plasma
8.
It can be compressed
a)
Solid
b)
Liquid
c)
Gas
9.
Its particles are held together by weak forces of attraction and are able to move freely over long distances
a)
Solid
b)
Liquid
c)
Gas
10.
When matter is heated, the
particles _______ energy
particles _______ energy
a)
Gain
b)
Lose
11.
When matter is ________, the
particles lose energy
particles lose energy
a)
Heated
b)
Cooled
12.
When particles are heated, they ______
a)
expand
b)
Contract
13.
When particles are cooled, they ______
a)
expand
b)
Contract
14.
When a substance exands due to heat, its particles increase in number
a)
True
b)
False
15.
A change from liquid to solid involves a _________ in temperature
a)
increase
b)
decrease
16.
A change from liquid to gas involves a _________ in temperature
a)
increase
b)
decrease
17.
A change from solid to liquid involves a _________ in temperature
a)
increase
b)
decrease
18.
A change from gas to liquid involves a _________ in temperature
a)
increase
b)
decrease
19.
Ice melts at what temperature?
a)
100 degrees Celsius
b)
0 degrees Celsius
c)
50 degrees Celsius
d)
100 degrees Fahrenheit
20.
Water boils at what temperature?
a)
100 degrees Celsius
b)
0 degrees Celsius
c)
50 degrees Celsius
d)
100 degrees Fahrenheit
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