PAP Physics | Chapter 8 Test
When gas is poured out of one container into another container, which of the following does NOT occur?
The gas keeps its original volume.
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.
Which of the following statements about floating objects is correct?
The buoyant force equals the object's weight.
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.
Which of the following statements is NOT correct?
A fluid has a definite shape.
How does a liquid differ from a gas?
A liquid has definite volume, unlike a gas.
Which of the following is a fluid?
Helium
Which of the following is NOT an example of units for expressing pressure?
Kg/m^2
Which of the following statements is always true?
Pressure always increases when force increases or the area acted on decreases.
Which of the following statements is true according to Pascal's principle?
Pressure in a fluid is the same throughout the fluid.
A buoyant force acts in the opposite direction of gravity. Therefore, which of the following is true of an object completely submerged in water?
The net force on the object is smaller than the weight of the object.
Why does the lift on an airplane wing increase as the speed of the airplane increases?
The pressure above the wing becomes less than the pressure below the wing.
Which of the following is NOT a fluid?
Wood