Physics Flashcards
What is thermodynamic temp measured in?
kelvin (K)
How do you work out kelvin from degrees celsius?
K = degrees C + 273
What is luminous intensity measured in?
candela (cd)
What is the amount of a substance measured in?
mole (mol)
How many cm is 1 inch?
2.54 cm
How many inches is 1 foot?
12 inches
How many feet is 1 nautical mile?
6080 feet
How many grams is 1 pound?
454 grams
How many litres is 1 pint?
0.568 litre
How many nautical miles/hr is 1 knot?
1 n.mile/hour
What is the formula for density?
density = mass / volume
What is the formula for momentum?
momentum = mass x velocity
What is the gravitational force?
9.81 m/s2 or 32 ft/s2
What is the formula for work done (measured in joules)?
work = force x distance
What is the formula for power (measured in watts)?
power = work/time power = thrust x velocity
What is the formula for pressure (measured in pascals)?
pressure = force/area
Formula for total pressure
static pressure + dynamic pressure
What is the formula for mass?
mass = weight/gravity
What is the formula for airflow mass?
airflow mass = density x area x velocity
Formula for total energy
pressure energy + kinetic energy
What is the standard density?
0.760 kg/m3
What is the dry air density?
1.255 kg/m3
How many Nm/min is 60 knots?
1 Nm/min
