Term 1 Studies Flashcards
(54 cards)
What is pemdas used for?
M or D first?
A or s first?
Order of operations to solve an algebra equation
Whatever comes first left to right m and D are of equal value
Same goes for A & s
( B1 plus B2 ) 1/2 h is the formula for what?
Area of a trapezoid
1/2 Bh is the formula for what?
Area of a triangle
What does 144 good to know for?
Sq In / sq ft
1728?
Cu in / Cu ft
231?
Cu in / gallon
7.5?
Gallons / Cu ft
6 lbs = to what?
Weight of Av gas
6.7 lbs = what?
Weight of Jet fuel
How many dimensions is area?
2
Dimensions of volume?
3
1/2 Bh = what?
Area of a triangle
3.141 X radius squared X stroke X # of cylinders?
Engine Displacement
Definition of gear ratio?
Ratio of speed of gears
How do you find aspect ratio?
Wing span / wing chord
Compression ratio?
Comparison of volume tdc to bdc
Circumference = ?
Pi x diameter
Area of a circle?
Pi x radius squared
9 square feet = x square yards?
1 sq yd
Sq ft to sq in?
Multiply by 144
Sq in to sq ft?
Divide by 144
Sq ft to sq yds
Divide by nine
Sq yds to sq feet
Multiply by nine
Area of square?
Length X width