PRESSURE

Which of the statements is true?

• The bottom of the boot exerts more pressure than the shoe as a result of an increase in surface area.
• The bottom of the shoe exerts more pressure than the boot as a result of an decrease in surface area.
• The bottom of the shoe exerts the same pressure as the bottom of the boot.

Tags

NGSS.MS-PS2-1

Army tank tracks are useful for travelling through the mud because..

• they decrease the force the vehicle exerts on the ground
• they increase the force the vehicle exerts on the ground
• they decrease the pressure the vehicle exerts on the ground
• they increase the pressure the vehicle exerts on the ground

Which of these animals would probably cause the greatest pressure on the ground?

• A fat cow with big feet
• A fat cow with small feet
•  A calf with big feet
• A calf with small feet

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Convert 10 kg to Newtons

• 0.098 N
• 4.5 N
• 100 N
• 98 N

Tags

NGSS.MS-PS2-4

Pressure is measured in what units

• Newtons
• m/s
• Pascals
• Moles

Pressure is equal to force divided by what

• area
• mass
• time
• distance

Pressure can be measured in Pascales (Pa) or Newtons per square metre.
1 Pa = 1N/m2

• True
• False

The pressure resulting from a force of 50 N exerted over an area of 5 m² is

• 10 N
• 0.1 N
• 10 N/m2
• 0.1 Pa

What does pressure measure?

• Strength
• Force exerted on a given area of surface

A person wearing steel toe capped boots and a person wearing stilleto heels stand on a wooden floor. They both have the same weight. Which person exerts a greater pressure on the floor?

• The person wearing the boots because the boots have a larger surface area in contact with the floor
• The person with the stiletto heels because they have a larger surface area in contact with the floor
• The person wearing the boots because the boots have a smaller surface area in contact with the floor 
• The person with the stiletto heels because they have a smaller surface area in contact with the floor