Fliuds Question Preview (ID: 62959)


McGtaw Hill. Chapter 14. TEACHERS: click here for quick copy question ID numbers.

If a substance in the gas phase loses heat energy, it changes into a liquid. This change in phase is called -
a) vaporization
b) evaporation
c) condensation
d) sublimation

Water is changing from the liquid phase to the gas phase as it boils in a beaker. Which of the following statements explains why this cannot be used to prove that matter is conserved during a change of phase?
a) The change of phase is incomplete.
b) Water is changing both phase and temperature.
c) Water in the gas phase is lighter than liquid water.
d) The change of phase is taking place in an open system.

Matter can alter its form through a chemical change or through a physical change. No matter what type of change it is, every time matter alters its form-
a) the matter releases heat
b) some of the matter is destroyed
c) new matter will be created
d) the amount of matter is the same

If you add thermal energy to matter, what happens?
a) The particles disappear
b) The particles stop moving
c) The particles move faster
d) The particles move more slowly

When driving a car, the chemical energy in gasoline is converted to heat (thermal energy) in the engine. Most of this thermal energy is then converted to mechanical energy, which makes the car move. What happens to the rest of the thermal energy?
a) It changes back to chemical energy.
b) It is given off by the hot engine.
c) It is converted for the rest of the trip.
d) It is destroyed by the engine

Archimedes' principle states that the buoyant force on an _______________ is equal to the weight of the displaced volume of liquid
a) object in the fluid
b) object floating on the fluid
c) fluid mixing with another liquid
d) substance dissolving into the fluid

Archimedes' principle states that _________________________.
a) the buoyant force on an object is greater than the weight of the fluid it displaces
b) when the speed of a fluid increases, the pressure exerted by the fluid decreases
c) pressure applied to a fluid is transmitted unchanged throughout the fluid
d) the buoyant force on an object is equal to the weight of the fluid it displaces

How does the fluid in a thermometer move as temperature increases?
a) from potential to kinetic
b) from kinetic to potential
c) from potential to light
d) from light to kinetic

Which of the following is an application of Bernoulli's Principle?
a) floating ships
b) inflated balloons
c) hydraulic engines
d) flying birds

Regarding thermal energy, the faster the tiny particles of matter move, the colder the the matter becomes
a) True
b) False
c)
d)

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