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WorksheetsKinetic Theory and Changes of State
Total questions: 15
Worksheet time: 8mins
Name
Class
Date
1.
When ice melts...
a)
The mass of the water decreases during melting.
b)
The mass of the water stays the same before, during and after melting.
c)
The mass of the water is always changing.
d)
The mass of the water increases during melting.
2.
What change of state does this pot show?
a)
Boiling
b)
Condensation
c)
Freezing
d)
Melting
3.
Which of the following is a correct description for solids?
a)
closely arranged and in fixed positions
b)
closely arranged and vibrate in fixed positions
c)
closely arranged and can move around
4.
When something goes from gas to liquid, it is called...
a)
Evaporation
b)
Condensation
c)
Deposition
d)
Freezing
5.
Which of the following statements about the kinetic particle theory is not true?
a)
The particles of a gas move faster than those of a liquid.
b)
The particles of a solid have more kinetic energy than those of a gas.
c)
The particles that make up matter are always moving.
d)
The forces of attraction between the particles of a solid are very strong.
6.
The graph below shows part of the cooling curve of a substance. Which row correctly identifies P, Q and R?
a)
P: Gas, Q: Gas and Liquid, R: Liquid
b)
P: Liquid, Q: Gas and Liquid, R: Gas
c)
P: Gas, Q: Liquid, R: Solid
d)
P: Solid, Q: Liquid, R: Gas
7.
A solid compound X was heated steadily for 20 minutes. The graph below shows the change in temperature of X with time. At what temperature did X melt?
a)
20°C
b)
40°C
c)
90°C
d)
100°C
8.
A solid compound X was heated steadily for 20 minutes. The graph below shows the change in temperature of X with time. What is the boiling point of X?
a)
20°C
b)
40°C
c)
90°C
d)
100°C
9.
What is/are the physical state(s) of X at 100°C?
a)
Solid
b)
Solid and liquid
c)
Gas
d)
Liquid and gas
10.
Which of the following statements about the particle of a gas is true?
a)
The particles of a gas vibrate about fixed positions.
b)
The particles of a gas are packed close together in a disorderly arrangement.
c)
The particles of a gas are far apart and move in all directions.
d)
The particles of a gas are stationary in an orderly arrangement.
11.
Which of the following states of matter has the LOWEST level of energy?
a)
Solid
b)
Liquid
c)
Gas
d)
Plasma
12.
What happens to the average kinetic energy of matter when it is heated?
a)
It increases
b)
It decreases
c)
It doesn't change
d)
It cannot be determined
13.
What state of matter is shown in the image?
a)
Solid
b)
Liquid
c)
Gas
d)
Thermal Energy
14.
At what temperature does matter change phases from a solid to a liquid?
a)
Melting Point
b)
Boiling Point
c)
100 degrees Celsius
d)
Condensation Point
15.
Particles in a solid move __________, than particles in a liquid
a)
faster
b)
slower
c)
more randomly
d)
more fluidly
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