Year 9 Pressure Revision

Which of the following are units for pressure?

• Pascals

• Watts

• Joules per second

• Newton’s per metre squared

Which of Jane’s shoes will exert the highest pressure?

• 
• 
• 
• 

The tractor has a weight of 30,000 N. The total surface area of tyres I contact with the ground is 4 m². What pressure does the tractor exert on the ground?

• 120 Pa

• 750 Pa

• 1200 Pa

• 7500 Pa

Which of the following factors affect the pressure of an object on a surface?

• Weight

• Surface Area

• Volume

• Density

All heavy objects exert a high pressure.

• True

• False

In which position is the liquid pressure greatest?

• a

• b

• c

What causes the pain in your ears as they pop when you descend from a flight on an aeroplane?

• Increasing air pressure

• Decreasing air pressure

• Colder air temperature

• Warmer air temperature

The pencil has a weight of 0.15 N and exerts a pressure of 0.06 N/mm² on the table. What is the surface area in contact with the table?

• 0.009 mm²

• 0.019 mm²

• 0.06 mm²

• 0.09 mm²

Assuming all the men have the same mass, which of the following exert the lowest pressure?

• 
• 
• 
• 

Which of the following are NOT units for pressure?

• N/mm²

• N/cm²

• N/m²

• N/mm³