Chapter 3 Section 2 & 3

Question 0

The notion that an object floats if the buoyant force on the object is equal to the objects weight was described by

a. Pascal
b. Archimedes
c. Bernoulli
d. Boyle

Answer 0

b. Archimedes

Question 1

Which of the following is not a fluid?

a. Air
b. Liquid
c. Gas
d. Wood

Answer 1

d. Wood

Question 2

The ability if an object to float on a fluid is influenced by the

a. fluids buoyant force
b. density of the object
c. density of the fluid
d. All of the above

Answer 2

d. All of the above

Question 3

Pascals principle states that a contained fluid exerts pressure

a. equally in all directions
b. downwards
c. upwards
d. sideways

Answer 3

a. equally in all directions

Question 4

Pressure is calculated by dividing force by the ______ over which the force is exerted

a. mass
b. area
c. volume
d. None of the above

Answer 4

b. area

Question 5

Viscosity is a measure of the resistance to flow of a

a. fluid
b. solid
c. Both (a) and (b)
d. None of the above

Answer 5

a. fluid

Question 6

The speed at which fluid flows through a pipe is influenced by the

a. flow rate of the fluid
b. cross-sectional area of the paper
c. viscosity of the fluid
d. All of the above

Answer 6

d. All of the above

Question 7

As the pressure of a moving liquid increases, it’s speed

a. decreases
b. stay the same
c. object in a fluid
d. object floating in fluid

Answer 7

b. fluid in motion

Question 8

Buoyant force is the ________ force exerted on an object immersed or floating on a liquid.

a. lateral
b. upward
c. downward
d. tensile

Answer 8

b. upward

Question 9

Boyle’s law relates the pressure of a gas to its

a. temperature
b. volume
c. container
d. composition

Answer 9

b. volume

Question 10

Charles’s law relates the temperature and _____________ of gas.

a. pressure
b. container
c. volume
d. composition

Answer 10

a. pressure

Question 11

As the temperature of a gas at constant volume decreases, it’s pressure

a. decreases
b. stay the same
c. increases
d. None of the above

Answer 11

a. decreases

Question 12

Gases are unique in comparison to solids and liquids because they

a. obey Bernoulli’s principle
b. have no definite shape
c. increases
d. are easily compressible

Answer 12

d. are easily compressible

Question 13

As the pressure of a gas at constant temperature decreases, its volume

a. decreases
b. stays the same
c. increases
d. None of the above

Answer 13

a. decreases

Question 14

Add he pressure and temperature of a fixed amount of gas increases, it’s volume

a. decreases
b. stays the same
c. increases
d. None of the above

Answer 14

c. increases