KMT - Day 1

Multiple Choice

1. Kinetic refers to _______________

• Force

• Energy

• Motion

• Acceleration

Multiple Choice

According to the kinetic-molecular theory, particles of matter

• are in constant motion.

• have different colors.

• have different shapes.

• are always liquid

Multiple Choice

Which is an example of gas diffusion?

• inflating a flat tire

• a tea bag being placed into hot water

• the odor of perfume spreading throughout a room

• all of the above

Multiple Choice

Two moving gas particles collide and their total energy after the collision is the same as before. This is an example of

• effusion

• an elastic collision

• expansion

• compression

Multiple Choice

Which of the following is an assumption of the kinetic-molecular theory of gases?

• Gases do not move in straight line
• Most of the volume of gas is empty space
• Gas particles are not in constant random motion
• Gas particles attract each other

Multiple Choice

Gas particles move around at __________ speeds. 

• low
• slow
• high
• unknown

Multiple Choice

As the temperature of a substance increases:

• The speed, and average kinetic energy of the particles, both increase.

• The speed, and average kinetic energy of the particles, both decrease.

• The speed of the particles increases, but the average kinetic energy of the particles decreases.

• The speed of the particles decreases, but the average kinetic energy of the particles increases.

Multiple Choice

The more energy that particles have, the ___ they move.

• slower

• faster

Multiple Choice

Air pressure at sea level is _____________ than air pressure at the top of a mountain.

• lower

• higher

• the same

Multiple Choice

Atmospheric pressure is the effect of

• the weight of all the air above pressing down

• water vapor in the atmosphere

• greenhouse gases

• solar radiation