Worksheetspressure in gases
Total questions: 35
Worksheet time: 29mins
Which of the three images represents the particles in a gas?
A
B
C
A slight problem with this diagram is that the particles in a real gas are actually...
in a neat arrangement
closer together
further apart
not really there
What are the particles in a gas doing?
Vibrating from side to side
Drifting slowly in random directions
Moving quickly in the same direction
Moving quickly in random directions
Not moving
The particles in a gas move around quickly because they have lots of (a)
When particles collide with the walls of their container they cause pressure.
Which two of these would increase the pressure?
Adding more particles
Making the particles lighter
Making the particles move faster
Making the container larger
Slowing the particles down
When a gas is compressed the pressure increases because the particles collide with the container walls more...
(a)
The pressure in a balloon increases as the temperature rises.
Which of these is NOT a reason why?
The gas particles hit the walls with more force
There are more collisions with each cm2 of wall per second
There are more particles in the box to hit each cm2 of wall
On average, more force is applied to each cm2 of the wall
When you breathe in, your chest expands and your diaphragm moves down. This causes your lungs to increase in volume. What will happen to the air pressure inside?
It will increase
It will decrease
It will stay the same
Write some sentences to explain why the balloon shrinks when placed in the ice-cold water. Use as many key words from the boxes as you can.
What is the unit of measurement for pressure?
Newtons per meter squared
Newton meter
Newtons
meters
How do you Calculate Pressure
Force(N)/Area(m2)
Force(kg)/Area(mi2)
Area(m2)/Force(N)
What is pressure?
The amount of force exerted on a surface
The surface area of an object
The weight of an object
The reason gases can be compressed is because:
The particles are very close together.
The particles are merely vibrating.
The particles are unable to move.
The particles are very far apart.
If a hairspray can is heated, what can be expected of the pressure of the gas inside the can?
The pressure will increase
The pressure will decrease
The pressure will remain constant
The pressure will equalize
The reason gases can be compressed is because:
The particles are very close together.
The particles are merely vibrating.
The particles are unable to move.
The particles are very far apart.
Gas pressure is caused by
Gas molecules heating up
Gas molecules reacting with other gas molecules
Gas molecules hitting the walls of a container
Gas molecules hitting other gas molecules
The pressure inside the balloon will:
Decrease
Increase
Remain the same
Not enough information to formulate an answer
The pressure inside the syringe will decrease if we move the plunger in:
Direction A
Direction B
We don't have to move the plunger as the pressure will change on its own.
None of the above answers.
The pressure of the gas in the balloon in the ice water will be:
Greater than that of the balloon in the boiling water.
Less than that of the balloon in the boiling water.
The same as that of the balloon in the boiling water.
Not enough information to answer the statement.
We can increase the pressure of a gas by:
Adding more gas.
Reduce the volume of the container.
Increase the temperature of the gas.
None of the above answers.
Why Mountain climbers takes oxygen tank with them ?
Because there is less pressure
Because there are less gas particles at high altitudes
Because they cant breath properly
All of the Above
In this Image the bottle was shrank because _________
It has been heated
It was cooled
Less Gas Pressure
The Gas particles had less energy
The pressure inside the balloon will:
Decrease
Increase
Remain the same
Not enough information to formulate an answer
The pressure of the gas in the balloon in the ice water will be:
Greater than that of the balloon in the boiling water.
Less than that of the balloon in the boiling water.
The same as that of the balloon in the boiling water.
Not enough information to answer the statement.
The pressure inside the syringe will decrease if we move the plunger in:
Direction A
Direction B
We don't have to move the plunger as the pressure will change on its own.
None of the above answers.
We can increase the pressure of a gas by:
Adding more gas.
Reduce the volume of the container.
Increase the temperature of the gas.
None of the above answers.
Weather balloons travel to a great height gathering data before the balloon bursts. This is because the atmospheric pressure (layer of gas surrounding the earth):
Increases the higher you travel.
Decreases the higher you travel.
Remains the same.
Not enough information to answer the question.
