Force and Pressure

What is the force that opposes the motion of objects sliding against each other?

• Friction

• Attraction

• Slipperiness

• Acceleration

Which law states that the pressure applied to a confined fluid is transmitted undiminished in every direction throughout the fluid?

• Pascal's Law

• Archimedes' Principle

• Newton's Law

• Boyle's Law

What is the upward force exerted by a fluid on an object immersed in it?

• Floating force

• Buoyant force

• Submerged force

• Sinkage force

What is the SI unit of pressure?

• Newton

• Tesla

• Joule

• Pascal (Pa)

Which type of friction occurs when an object moves through a fluid?

• Static friction

• Kinetic friction

• Rolling friction

• Fluid friction or viscous drag

State Pascal's Law in your own words.

• Pascal's Law is about the relationship between temperature and pressure in fluids.

• Pascal's Law states that pressure in a fluid decreases with depth.

• Pascal's Law only applies to gases, not liquids.

• Pascal's Law states that a change in pressure applied to an enclosed fluid is transmitted undiminished to all portions of the fluid and to the walls of its container.

What is the formula to calculate pressure?

• Pressure = Volume / Area

• Pressure = Mass * Acceleration

• Pressure = Density / Volume

• Pressure = Force / Area

How does the buoyant force on an object change when it is fully submerged in a fluid?

• The buoyant force becomes zero

• The buoyant force increases

• The buoyant force decreases

• The buoyant force remains the same.

What is the force that acts opposite to the direction of an object's motion?

• Friction

• Gravity

• Inertia

• Momentum

Explain how the surface area of an object affects the pressure it exerts on a surface.

• Objects with larger surface areas exert less pressure

• The surface area of an object affects the pressure it exerts on a surface by distributing or concentrating the force over a larger or smaller area respectively.

• The surface area of an object has no impact on the pressure it exerts

• The pressure exerted by an object is solely determined by its weight