Module 1 & 2

Question 1

This deals with the study of the behavior of fluids (gases or liquids)

Answer 1

Fluid Mechanics

Question 2

_______ is any substance that can flow

Answer 2

Fluid

Question 3

This is the study of fluids at rest.

Answer 3

Fluid Statics

Question 4

_______ is the study of fluids in motion.

Answer 4

Fluid Dynamics

Question 5

This refers to the force exerted on a given area.

Answer 5

Pressure

Question 6

The ________ of an object is the ratio of its density to the density of water.

Answer 6

Relative Density

Question 7

This refers to the force exerted on an object in water.

Answer 7

Fluid Pressure

Question 8

True or False.
Fluid Pressure is directly proportional to the depth and density.

Answer 8

True

Question 9

True or False.
Fluids exert varying pressures in all directions.

Answer 9

False
(fluids exert THE SAME pressure in all directions)

Question 10

True or False.
A fluid cannot sustain a shearing stress. The forces exerted by a fluid on the walls are perpendicular.

Answer 10

True

Question 11

True or False.
Fluid pressure is independent of volume and shape.

Answer 11

False
(independent of area and shape)

Question 12

This states that an external pressure applied to an enclosed fluid is transmitted uniformly throughout the volume of the liquid.”

Answer 12

Pascal’s Principle

Question 13

This states that an object submerged in fluid experiences a buoyant force equal to the weight of the fluid displaced.

Answer 13

Archimedes’ Principle

Question 14

This refers to the upward force exerted by a liquid on an object.

Answer 14

Buoyant Force

Question 15

True or False.
When an object floats, partially submerged, the buoyant force balances the weight of the object.

Answer 15

True

Question 16

This is the degree of hotness of an object measured by a thermometer.

Answer 16

Temperature

Question 17

_______ is the energy that travels from high to low temperature in a matter,

Answer 17

Heat

Question 18

This deals with the study of temperature, heat energy, and its relation to matter.

Answer 18

Thermal Physics

Question 19

Heat is also known as _______ or ________ .

Answer 19

Thermal/Internal Energy

Question 20

This refers to the properties that change when an object’s temperature changes,

Answer 20

Thermometric Properties

Question 21

True or False.
Only certain matters expand when heated because of the increased vibration of the molecules.

Answer 21

False
(ALL matters expand when heated)

Question 22

This occurs when an object’s temperature changes and its length changes.

Answer 22

Linear Expansion

Question 23

True or False.
Regarding linear expansion the change in length is directly proportional to change in temperature for extreme temperature changes.

Answer 23

False
(for MODERATE temperature changes)

Question 24

True or False.
When an object undergoes thermal expansion, any holes in the object expand as well.

Answer 24

True

Question 25

True or False. Increasing temperature causes an increase in volume for only solid materials.

Answer 25

False (for solid AND LIQUID materials)

Question 26

Energy transfer that takes place solely because of temperature difference is called _________ or _________.

Answer 26

Heat Flow/Heat Transfer

Question 27

The energy that is transferred due to heat flow or heat transfer is called ______.

Answer 27

Heat

Question 28

______ means measuring heat.

Answer 28

Calorimetry

Question 29

What method of heat transfer happens when there is a transfer of heat through collision within a substance (especially solid).

Answer 29

Conduction

Question 30

What method of heat transfer happens when there is a transfer of heat in gas or liquid through currents in the heated fluid. The fluid carries energy, such as hot air rising.

Answer 30

Convection

Question 31

What method of heat transfer happens when there is a transfer of energy at light speed through electromagnetic waves.

Answer 31

Radiation

Question 32

This refers to the energy radiated in a form of electromagnetic waves.

Answer 32

Radiant Energy

Question 33

This refers to the amount of heat to raise the temperature of a gram of water from 14.5°C to 15.5°C.

Answer 33

Calorie

Question 34

This refers to the quantity of heat required to raise the temperature of 1 pound of water 1°F .

Answer 34

British Thermal Unit (BTU)

Question 35

True or False. The quantity of heat required to increase the temperature of a mass of a certain material is proportional to the change in temperature and the mass.

Answer 35

True

Question 36

This is the amount of heat required to raise the temperature by 1°C for the mass of 1kg.

Answer 36

Specific heat (c)

Question 37

This is the branch of science that deals with the properties of matter and changes due to the effects of heat and work.

Answer 37

Thermodynamics

Question 38

It is the study of heat and work.

Answer 38

Thermodynamics

Question 39

True or False. The Zeroth Law of Thermodynamics states that if C is in thermal equilibrium with A and B, then A and B are not in thermal equilibrium with each other.

Answer 39

False (Then A and B are ALSO in thermal equilibrium with each other)

Question 40

True or False. The Zeroth Law of Thermodynamics states that two systems are in thermal equilibrium if they have the same temperature.

Answer 40

True

Question 41

According to the conservation of energy, the energy leaving a body is less than the energy entering another body in an isolated system.

Answer 41

False (the energy leaving a body is equal to the energy entering another body)

Question 42

______ results when heat is absorbed or released without a change in temperature.

Answer 42

Phase Change

Question 43

This refers to the change in the internal energy of a closed system is equal to the energy added to the system through heat minus the work done by the system on its surroundings.

Answer 43

First Law of Thermodynamics

Question 44

This is the sum of the kinetic energies of all its constituent particles plus the sum of all the potential energies of the interaction among the particles.

Answer 44

Internal Energy

Question 44

A _________ is a system that can exchange energy, but not matter, with its surroundings.

Answer 44

Closed System