Understanding Force and Pressure

What is the formula for calculating force?

• F = m + a

• F = m * a

• F = m - a

• F = m / a

Define pressure in your own words.

• Pressure is the force exerted on a surface divided by the area of that surface.

• Pressure is the temperature of a gas in a container.

• Pressure is the amount of space an object occupies.

• Pressure is the weight of an object on a surface.

How is pressure calculated?

• Pressure = Mass / Volume

• Pressure = Area / Force

• Pressure = Force + Area

• Pressure = Force / Area

What unit is pressure measured in?

• Atmospheres (atm)

• Millimeters of mercury (mmHg)

• Pascals (Pa)

• Newtons per square meter (N/m²)

Explain the relationship between force and area in pressure.

• Pressure is the total force exerted on an object.

• Pressure is the force applied per unit area (P = F/A).

• Pressure increases with a larger area regardless of force.

• Pressure is the area divided by the force applied.

What happens to pressure if the area is increased while keeping force constant?

• Pressure remains the same.

• Pressure fluctuates unpredictably.

• Pressure increases.

• Pressure decreases.

What is atmospheric pressure?

• The pressure exerted by the weight of the atmosphere, usually measured in pascals (Pa) or millibars (mb).

• The force applied by the wind on a surface.

• The amount of moisture in the air.

• The temperature of the atmosphere at sea level.

How does altitude affect atmospheric pressure?

• Altitude inversely affects atmospheric pressure; as altitude increases, atmospheric pressure decreases.

• Altitude has no effect on atmospheric pressure.

• As altitude increases, atmospheric pressure increases.

• Atmospheric pressure is constant regardless of altitude.

Give an example of a situation where pressure is applied.

• Deflating a tire.

• Pouring water into a glass.

• Inflating a balloon.

• Squeezing a sponge.

What is the difference between static and dynamic pressure?

• Static pressure is the pressure of a fluid at rest; dynamic pressure is the pressure due to the fluid's motion.

• Static pressure is always higher than dynamic pressure.

• Dynamic pressure is the pressure of a fluid at rest; static pressure is due to motion.

• Static pressure only applies to gases, while dynamic pressure applies to liquids.