Question 1:

Which of the following properties determines how "heavy" a fluid is?

Explanation: The correct answer is C) Density. Density is a measure of how much mass a fluid has per unit volume. It determines the "heaviness" or massiveness of a fluid. Fluids with higher density are heavier than fluids with lower density.

Question 2:

Which of the following is the correct formula for pressure?

Explanation: The correct answer is D) Pressure = Force / Area. Pressure is defined as the force per unit area exerted by a fluid. The formula relates pressure, force, and the area over which the force is distributed. It can also be expressed as P = F/A.

Question 3:

What causes an object to float or sink in a fluid?

Explanation: The correct answer is B) Buoyant force. An object floats or sinks in a fluid due to the upward force exerted on it by the fluid, known as the buoyant force. Whether an object floats or sinks depends on the relative densities of the object and the fluid. If the object is less dense than the fluid, it will float; if it is more dense, it will sink.

Question 4:

When the depth of a fluid increases, what happens to the pressure at that depth?

Explanation: The correct answer is A) The pressure increases. In a fluid, pressure increases with depth. This is because the weight of the fluid above exerts a greater force on the fluid at lower depths, resulting in higher pressure.

Question 5:

What causes the upward force experienced by an object submerged in a fluid?

Explanation: The correct answer is C) Buoyant force. When an object is submerged in a fluid, it displaces some of the fluid. The fluid exerts an upward force on the object known as the buoyant force. The magnitude of the buoyant force is equal to the weight of the fluid displaced by the object.