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Physics & Chemistry Pre-assessment

Total questions: 10

Worksheet time: 9mins

Name
Class
Date
1.

Which example has particles that can be drawn closer to occupy smaller volume?

a)

Fruit juice

b)

Block of wood

c)

Air inside the syringe

d)

Ice cube

2.

Which of the following phenomena does NOT involve the application of gas pressure?

a)

Burning fuels

b)

Falling leaves

c)

Vulcanizing tire

d)

Rising hot air balloons

3.

How can you possible prove that gases have negligible mass?

a)

Put a balloon in a digital balance before and after you fill it with air

b)

Feel the weight of the samples on both hands

c)

Ask two persons to hold a box filled with air

d)

Support your claim of through equation

4.

All the gas samples have the same temperature and mass. In which of the following conditions will the gas sample have highest density?

a)

10 atm

b)

8 atm

c)

6 atm

d)

4 atm

5.

What happens to the density of a gas as its volume decrease at constant pressure and temperature?

a)

decrease

b)

increase

c)

stays the same

d)

unpredictable

6.

What gas law best explains the explosion of the heated aerosol container?

a)
b)
c)
d)
7.

What will happen to the gas pressure as the temperature increases, if the amount and volume of the gas are kept constant?

a)

the gas pressure remains the same

b)

the gas pressure decrease

c)

the gas pressure increases

d)

there is no significant effect

8.

How does the temperature affect the average kinetic energy of gas molecules?

a)

as the temperature decreases the average KE of gas molecules decreases

b)

as the temperature decreases the average KE of gas molecules increases

c)

as the temperature decreases the average KE of gas molecules remains the same

d)

as the temperature decreases the average KE of gas molecules fluctuates

9.

What kind of movement is exhibited by gas molecules?

a)

Vibrational movement

b)

Rotational movement

c)

Translational movement

d)

Combination of A, B & C

10.

What gas law best explain the relationship among the volume, pressure, temperature and the number of moles of gases?

a)

Boyle's law

b)

Charle's law

c)

Ideal Gas law

d)

Combined Gas law