Powerplants Flashcards
What is the definition and formula of “force”?
Force=Mass x Acceleration / F=M x A (Measured in units of newtons or pounds force).
What is the definition and formula of “work done”?
Work Done=Force x Distance / W=F x D (Measured in units of Joules or Foot pounds).
What is the definition of ‘’Power” and what is the units used?
Work done per unit time. Measured in joules/second (watts) orr Foot pounds per minute, expressed in horsepower (HP) (1HP=33,000 foot pounds/minute).
What is Newton’s first law of motion (The Inertia Law)?
A body will remain at rest or in uniform motion in a straight line unless acted on by an external force.
What is Newton’s second law of motion (The Momentum Law)?
The acceleration of a body from a state of rest or uniform motion in a straight line is PROPORTIONAL to the applied force and INVERSELY PROPORTIONAL to the mass of the body.
What is the acceleration formula?
Acceleration = Velocity(final) - Velocity(initial) / Time (t)
What is Newton’s third law of motion (The Reaction Law)?
For every action there is an equal and opposite reaction.
What is the first law of thermodynamics?
Heat and mechanical energy are mutually convertible. The rate of exchange is constant and can be measured.
What is the second law of thermodynamics?
Heat cannot be transferred from a region at a lower temperature to one at a higher temperature without the expenditure of energy from an external source.
What is the formula for “Power”?
Power = Work Done / Time Taken ( P=E/t )
