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WorksheetsHollingworth Academy Triple physics Gas Pressure
Total questions: 15
Worksheet time: 11mins
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.
Work done
work done = force
work done = force × distance
work done = distance / force
Pressure
pressure = force x area
pressure = force / area
pressure = area / force
In gases, pressure is
directly proportional to volume
inversely proportional to volume
directly proportional to friction
inversely proportional to heat
For a constant temperature, Boyle's law states that
the pressure of a fixed amount of gas is directly proportional to the volume of the gas
the pressure of a fixed amount of gas is inversely proportional to the volume of the gas
the pressure of a fixed amount of gas is independent of the volume of the gas
None of the above
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
How do you calculate the area of an object?
At a pressure of 405,000Pa, the volume of a gas is 6.00 m3. Assuming the temperature remains constant, at what pressure will the new volume be 4.00m3?
6 Pa
607,500 Pa
2,430,000 Pa
9,720,000 Pa
A volume of gas at 110.000 Pa was measured at 0.326 m3. What will be the volume if the pressure is adjusted to 190,000 Pa?
35.86 m3
1.88 x 10-4
5298.3 m3
31666.6
Doing work on a gas increases the .....
Gravitational potential energy
The internal energy
The change of state energy
The potential energy
Pumping a bicycle pump makes the air inside hotter because....
The internal energy of the gas in the pump gets larger which in turn increases the temperature
The internal energy of the gas in the pump decreases cause it to change state
More work has been done on the gas so the internal energy of the gas increases and the state changes
The work done on the gas decreases the kinetic energy of the particles and they increase in temperature
A student carried out an investigation to see how pumping a squash ball in their hand multiple times affected the temperature of the air inside the ball.
The method is below
1. Gently push the thermometer into the hole in the squash ball and record the temperature of the air in the ball. Record it in the table below
2. Remove the thermometer. Hold the ball in your hand and squeeze it as hard as you can 20 times.
3. Gently push the thermometer into the hole in the squash ball and record the temperature of the air in the ball. Record it in the table below
4. Repeat steps 2 and 3 until you have squeezed the ball 120 times
What is the independent variable in this investigation ?
The temperature of the ball
Using the same squash ball
The same person doing the squeezing
The number of times the ball is squashed
