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WorksheetsStates of Matter (particle theory, diffusion, gas pressure)
Total questions: 15
Worksheet time: 8mins
In steam, the distance between the molecules is __________ distance between the molecules in liquid water.
Please fill in the blank with the correct answer!
smaller than
the same as
larger than
not change
The following statements about the arrangement of particles:
1. The particles are arranged in regular rows
2. The particles are arranged randomly
3. The particles can only vibrate
4. The particles can move freely
Which statements describe the particles in gases?
1 and 4
2 and 3
1 and 3
2 and 4
Heating a liquid causes it to become a vapor. What happens to the molecules of the liquid during the process?
molecules become bigger and move further apart
molecules become bigger
molecules move further apart
nothing happens
The phase change is shown below:
In which changes do the particles move further apart?
R and S
R and U
S and T
T and U
An inflated balloon is placed in a refrigerator. Which statement describes the movement of the gas particles in the balloon?
The particles move more slowly and become closer together.
The particles move faster and become closer together.
The particles move more slowly and become further apart.
The particles move faster and become further apart.
Small crystals of purple KMnO4 and orange K2Cr2O7 were placed at the centers of separate Petri dishes filled with agar jelly. They were left to stand under the same physical conditions. After some time, the color of each substance had spread out as shown.
The lengths of the arrows indicate the relative distances traveled by particles of each substance. Which process causes this to happen?
Brownian motion
Condensation
Diffusion
Filtration
If you put some pollen grains into a drop of water on a microscope slide, they float. When you look through the microscope, you will see that the pollen grains are moving about. They jiggle about in random directions. You will see the same effect if you sprinkle some dust on the water. What is the process of the occasion above?
Diffusion
Brownian Motion
Molecular Motion
Collision Motion
When you make tea, particles from the tea leaves diffuse into the water. You can make the tea stronger and darker by adding more tea leaves. On this occasion, which factor speed up diffusion?
State of matter
Temperature
Mass of the particle
Size of the particle
Two gas jars are set up as shown. The lid is removed and the gas jars are left to stand. after some time, the contents of both gas jars are brown. Which process causes this to happen?
Condensation
Diffusion
Evaporation
Filtration
Fill in the blank: Diffusion is when particles move from an area of ______ concentration to an area of _________ concentration.
low, high
high, high
high, low
low, low
Using the particle theory of matter, which of the following statements best defines gas pressure?
Gas pressure is the number of gas particles within a certain volume.
Gas pressure is the energy gas particles have when they collide with each other.
Gas pressure is the volume a gas occupies at a specific temperature.
Gas pressure is the force exerted per unit area by gas particles colliding with the walls of a container.
When you buy a bottle of gas to use for cooking, the container is very strong. Why does the container need to be very strong?
The particles spread further apart from one another.
The particles are squeezed together; this creates very high pressure.
Gas particles move randomly all the time in a large space.
The gas particles increase the pressure in the container.
When you push more air particles inside the football, it will be more particles and more frequent collisions with the walls of the football. According to the phenomena above, which one is correct?
Less space, less pressure
Less space, more pressure
Higher temperature, more pressure
Higher temperature, less pressure
Bottle gas is stored outside buildings because there is a danger if they are in a fire. Explain what can happen to full gas bottles if they are involved in a fire?
Nothing happens.
If it is heated the gas particles will move more and the gas bottle will expand.
If it is heated the gas-particle will move further and the gas bottle will fall off.
If it is heated the gas particles will move more and the bottle will explode.
A student notices one of their bike tires is slightly deflated. They use a bike pump to inflate the tire and observe the pressure of the tire increase. How does the bike pump increase the gas pressure in the tire?
The bike pump increases the number of particles in the tire, resulting in more frequent collisions with the surface and an increase in pressure.
The bike pump increases the temperature of the tire, resulting in more frequent and energetic collisions with the surface and an increase in pressure.
The bike pump increases the volume of the tire, resulting in more frequent collisions and an increase in pressure.
The bike pump decreases the volume of the tire, resulting in more frequent collisions with the surface and an increase in pressure.
