Physics

Question 1

What is heat

Answer 1

Vibration of Molecules

Question 2

What is the formula of Mass, Weight, and Gravity

Answer 2

Weight / Mass * Gravity

Question 3

What is the formula of Density, Weight, and Volume

Answer 3

Weight / Density * Volume

Question 4

What is the formula for Specific Gravity

Answer 4

Density of Substance / Density of Water

Question 5

What is the formula for potential energy

Answer 5

PE / weight * height

Question 6

What is the formula for Kinetic Energy

Answer 6

1/2 mass * velocity^2

Question 7

What is the formula for Work, Force, Distance

Answer 7

Work / Force * Distance

Question 8

What is the formula for Power, Work, Time

Answer 8

Power / Work * Time

Question 9

What is the effects of large gear to small gear

Answer 9

Increased Speed, Decreased Torque

Question 10

What are the six times of simple machines

Answer 10

Lever, Pulley, Wheel and Axle, Inclined Plane, Screw, and Gear

Question 11

Machine Defined

Answer 11

multiply force or to multiply speed

Question 12

What are the two types of mechanical advantage and what are there formulas

Answer 12

Mechanical Advantage (Force) = Force In / Force Out

Mechanical Advantage (Distance) = Distance In / Distance Out

Question 13

How is Weight dispersed through a pulley and what is the Mechanical Advantage of a pulley is based on?

Answer 13

Weight is proportionally dispersed through out the ropes,

Ratio of input rope to output ropes

Question 14

What is force in and force out of a lever

Answer 14

Resistance is force in and effort is force out

Question 15

What is the lever formula

Answer 15

Effort * Effort Arm = Resistance * Resistance arm

Question 16

Large gear and Small Gear speed and torque force

Answer 16

High Torque/Slow and

Fast/Low Torque

Question 17

What direction does a driven gear turn from a drive gear

Answer 17

Opposite of the drive gear

Question 18

What is an idler gear

Answer 18

Gear put in between two gears to make the driven gear spin in the same direction as drive gear

Question 19

What are mechanical advantage formulas for speed and force gears

Answer 19

Speed MA = Driven / Drive

Force MA = Drive / Driven

Question 20

What is the formula for Incline Planes

Answer 20

Effort * Effort Length = Resistance * Resistance Arm

Question 21

Pressure Defined

Answer 21

Amount of force acting on a specific amount of surface area

Question 22

PSI defined

Answer 22

Pounds Per Square Inch

Question 23

What is the flow of pressure

Answer 23

High Pressure always chases low pressure

Question 24

Ambient Pressure Defined

Answer 24

Pressure in a certain area

Question 25

What is one defining characteristic of Fluid Pressure

Answer 25

Fluid is not compressible

Question 26

Pascal's Law Defined and Formula

Answer 26

How Pressure acts on a fluid and how the fluids force acts on surrounding objects Force (lbs) = Area^2 * Pressure (in^2)

Question 27

Flow of Pressure formula

Answer 27

Volume of Moved input * Distance moved = Output of Volume moved * Distance moved

Question 28

What is characteristics of High Pressure and Low pressure

Answer 28

High Pressure air = Rises, Low Density, Low Velocity, High Temperature Low Pressure air = Falls, High Density, High Velocity, Low Temperature

Question 29

What are the Five Mechanical Stresses

Answer 29

Tension, Compression, Torsion, Bending, and Shear

Question 30

What happens to pressure if volume is constant and temperature goes up and why

Answer 30

Pressure Increases Increase in temperature increases vibration of particles as particles are vibrated and hit each other more the energy is transferred between other particles

Question 31

What is Gas laws formula

Answer 31

Volume one * Pressure one = Volume two * Pressure two

Question 32

What is Charles Law

Answer 32

All gases expand and contract in direct proportion to the change in the absolute temperature

Question 33

What is Charles Laws formula for when volume is constant and volume is different

Answer 33

Pressure one * Temperature two = Pressure two * Temperature one Volume one * Absolute Temperature one = Volume two * Absolute temperature one

Question 34

What is the combined formula for Charles law and Boyle's law

Answer 34

(Pressure one * Volume one) / Temperature one = | (Pressure two * Volume two) / Temperature two

Question 35

What is the pressure of mixed gases

Answer 35

The pressure of mixed gases is summed

Question 36

What is Absolute Pressure

Answer 36

pressure adjusted for atmospheric pressure

Question 37

What unit does absolute temperature use

Answer 37

Rankine

Question 38

Is water vapor denser or less dense then air

Answer 38

Water vapor is less dense then air,

Question 39

What is Absolute Humidity

Answer 39

Actual Water vapor in mixture of air and water

Question 40

What is Relative Humidity

Answer 40

Ratio of the amount of water vapor actually present in the atmosphere to the amount that would be present if the air were saturated

Question 41

What is Dewpoint

Answer 41

Temperature at which humid air must be cooled to condense

Question 42

What is Vapor Pressure

Answer 42

Portion of atmospheric pressure that is exerted by the moisture in the air