Engines

Question 1

BLANK- converts heat into some other energy.

Answer 1

Heat engine

Question 2

BLANK- the amount of useful work it can produce based on the amount of heat that we give on it.

Answer 2

Thermal efficiency

Question 3

BLANK- The second law states that as energy is transferred or transformed, more and more of it, is wasted.

Answer 3

Second law of thermodynamics

Question 4

BLANK- written in his book there is the concept of the most efficient steam engine possible.

Answer 4

Sadi Carnot

Question 5

BLANK was a German mathematician and physicist who introduced the concept of entropy around 1850.

Answer 5

Rudolf Clausius

Question 6

BLANK is the measure of a system’s thermal energy per unit temperature that’s unavailable for doing work. It’s also the measure of the disorder, or randomness, of a system.

Answer 6

Entropy

Question 7

BLANK - is a sequence of repetitive processes.

Answer 7

Cycle

Question 8

The process that your fridge uses today is based on the work of 19th century American inventors BLANK.

Answer 8

Oliver Evans and Jacob Perkins

Question 9

BLANK - helps to visualize the process.

Answer 9

Phase Diagram

Question 10

The BLANK is a simple refrigerator made from one earthen pot set inside another, with a layer of wet sand in between them.

Answer 10

Zeer pot

Question 11

BLANK - it explains how the fluid flows in a medium. I.E: How food coloring flows, how air flow as the car approaches. It is the study how fluids respond to the forces exerted to them.

Answer 11

Fluid Mechanics

Question 12

BLANK - interaction between a medium and a flow. A thing moving from one place.

Answer 12

Transfer

Question 13

BLANK - the force applied to an area or object or a substance.

Answer 13

Stress

Question 14

BLANK - force is perpendicular to the surface of the object.

Answer 14

Normal Stress

Question 15

If it is parallel it is BLANK stress.

Answer 15

sheer stress

Question 16

BLANK - is the deformation that stress causes on the system.

Answer 16

Strain

Question 17

BLANK - a measure of a fluid’s resistance to flow. Often refers to the thickness of a fluid.

Answer 17

Viscosity

Question 18

BLANK - whatever stress you may input to an object, its viscosity will remains the same.

Answer 18

Law of viscosity

Question 19

BLANK studied fluid flow and learned that there are two main types of flow: Laminar and Turbulent.

Answer 19

Osborn Reynolds

Question 20

BLANK - In fluid dynamics, laminar flow is characterized by fluid particles following smooth paths in layers, with each layer moving smoothly past the adjacent layers with little or no mixing.

Answer 20

Laminar flow

Question 21

BLANK - In fluid dynamics, turbulence or turbulent flow is fluid motion characterized by chaotic changes in pressure and flow velocity. It is in contrast to a laminar flow, which occurs when a fluid flows in parallel layers.

Answer 21

Turbulent flow

Question 22

BLANK - combination of laminar and turbulent flow. It commonly has turbulent flow on the center of the pipe and laminar at the edges.

Answer 22

Transitional flow

Question 23

BLANK - represent the driving kinetic movement of the fluid, which result in chaotic flow movement, like the swirling motion of eddies and vortices.

Answer 23

Inertial forces

Question 24

BLANK - represent resistance to flow and are more likely to provide slow, steady motion.

Answer 24

Viscous forces

Question 25

Low Reynold’s number = BLANK (Lower than 2,100) High Reynold’s number = BLANK (Higher than 4000) Understanding fluid mechanics allows us to use and apply equipment for fluid flow, like pumps and pipes.

Answer 25

Laminar, Turbulent

Question 26

BLANK - He noticed that when he punctured the wall of the pipe with an open-ended straw, the height to which the fluid rose in the straw was related to the pressure of the fluid in the pipe.

Answer 26

Daniel Bernoulli