# E2020 Physics: Fluids and Buoyant Force

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### How does a liquid differ from a gas?

A liquid has definite volume, unlike a gas.

### When a gas is transferred from one container into another container, which of the following does not occur?

The gas keeps its original volume.

### A buoyant force acts in the opposite direction of gravity. According to Archimedes' Principle, which of the following is true of an object completely submerged in water?

The magnitude of the upward buoyant force on the object is equal to the weight of the fluid displaced by the object.

### Which of the following statements about floating objects is always true?

The buoyant force equals the weight of the object.

### Which of the following statements about completely submerged objects resting on the ocean bottom is correct?

The apparent weight of the object depends on the object's density.

True

True

10.5 g/cm^3

pressure.

31.1 cm^3

### A buoyant force acts in the opposite direction of gravity. According to Archimedes' Principle, which of the following is true of an object completely submerged in water?

The magnitude of the upward buoyant force on the object is equal to the weight of the fluid displaced by the object.

### Which of the following statements about completely submerged objects resting on the ocean bottom is correct?

The apparent weight of the object depends on the object's density.

### If an object is only partially submerged in a fluid, which of the following is true?

The density of the fluid is greater than the density of the object.

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