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Kinetic Molecular Theory 4B

Total questions: 15

Worksheet time: 13mins

Name
Class
Date
1.

Adding heat to a solid makes the particles move...

a)

Particles in a solid are not moving

b)

Slower

c)

At the same rate as before the heat was applied

d)

Faster

2.

The particles in a gas are ______ away from each other than the particles in a solid

a)

farther

b)

closer

c)

the same distance

3.

This one is tricky!

The temperature of each flask is given in Kelvin (K). Think about how temperature affects the motion of gas particles. Now think about what causes gas pressure....

Which of the following statements is correct?

a)

Flask 1 has the lowest pressure

b)

Flask 3 has the lowest pressure

c)

Flask 2 has the lowest pressure

d)

Flask 4 has the lowest pressure

4.

Which among the following is NOT true regarding the Kinetic Molecular Theory of gases?

a)

Gases particles move in straight lines.

b)

Gas particles are closely packed and their motion is orderly.

c)

Gas particles are in constant motion.

d)

Gas particles do not attract or repel each other.

5.

Which type of motion in the figure best represents the movement of gas particles?

a)

Motion 1

b)

Motion 2

c)

Motion 3

d)

Motion 4

6.

Which of the following is true regarding the kinetic molecular theory of gases?

a)

Gas particles are attracted to one another.

b)

Gases consist of closely spaced particles.

c)

Gas particles move around in an orderly manner.

d)

The temperature of a gas depends on the average kinetic energy of the gas particles.

7.
Of these three states of matter, which one has the most kinetic energy? 
a)
Solid 
b)
Liquid 
c)
Gas
8.

Which of the following statements is true?

a)

Gases do not move in straight line

b)

Gas particles are spaced so far apart that most of the volume of gas is empty space

c)

Gas particles are not in constant motion

d)

Gas particles attract each other

9.

The pressure of each flask is given in atmospheres (atm). Flask 1 has the lowest pressure, and Flask 4 has the highest. Knowing what causes gas pressure, which of the following statements is true?

a)

Flask 1 contain the most molecules

b)

Flask 2 contain the most molecules

c)

Flask 3 contain the most molecules

d)

Flask 4 contain the most molecules

10.

The energy of motion is known as ___.

a)

potential energy

b)

kinetic energy

c)

mechanical energy

11.
The movement of gas molecules is greatly affected by _________.
a)
the shape of the container
b)
size of the container
c)
temperature of the container
12.

Gas pressure is caused by ______.

a)

gravity.

b)

gas molecules colliding with each other.

c)

gas molecules colliding with surfaces of the container.

d)

gas molecules reacting with each other.

13.
At what temperature do nitrogen molecules move fastest?
a)
350 K
b)
300 K
c)
250 K
d)
200 K
14.
True or false: melting and freezing occur at the same temperature!
a)
True
b)
False
c)
I don't know
15.

What happens to matter as its temperature increases?

a)

The average kinetic energy of its particles decreases

b)

The average thermal energy of its particles decreases

c)

The particles gain kinetic energy

d)

The particles lose potential energy