Pressure

Which of these is the equation relating Pressure, Force and Area?

• $P\ =\ \frac{F}{A}$

• $P\ =\ F\ \times A$

• $P\ =\ \frac{A}{F}$

• $P\ =\ aF$

Which of these is the correct equation triangle?

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• 
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Which of TWO these units mean the same thing

• $N$ / $m^2$ $\left(Newtons\ per\ metre\ squared\right)$

• $Pa\ \left(Pascals\right)$

• $N$ / $cm^{2\ }\left(Newtons\ per\ centimetre\ squared\right)$

• $Nm\ \left(Newton\ Meters\right)$

What is the unit for pressure?

• Pascal (Pa)

• Rads (Rd)

• Metres per second (m/s)

• Newtons (N)

The T__________ affects the pressure of a gas.

Gas pressure is caused by particles .....

• Colliding with the walls of the container.

• Colliding with each other.

• Reacting with each other.

• Reacting with the walls of the container.

What are the three factors that affect Gas Pressure?

• Volume of Container

• Number of Particles

• Temperature

• What the gas smells like

• Turning Force

A person pushes a closed door with their hand. The push with a force of 50N. Their hand has an area of 200 $cm^2$ . Calculate the pressure they apply to the door 

•  $0.25N$ / $m^2$  

•  $0.25N$ / $cm^2$  

•  $10,000N$ / $m^2$   

•  $10,000\mu N$ / $m^3$  

A pupil has a 2 balloons of Nitrogen gas. She places one in the fridge and one in the oven. What will happen to the balloons?

• The fridge balloon will shrink and the oven balloon will expand

• The fridge balloon will shrink and the oven balloon will shrink

• The fridge balloon will expand and the oven balloon will shrink

• The fridge balloon will expand and the oven balloon will expand