😴Boring Flashcards
(26 cards)
What is defined as the multiplication the output force that a machine provides?
Actual mechanical advantage (AMA)
Which type of acceleration which occurs when object falls from the sky, it will increase 9.81 m/s every second it stays in the air?
Acceleration of gravity
What is speed calculated over a distance called?
Average Speed
What is the velocity at which the force of the drag equals the object’s weight?
Terminal velocity
What is the, “center seeking”, force that causes an object to travel in a curved path rather than a straight path?
Centripetal
What is the SI unit of power?
A watt
What is the mathematical formula for total velocity?
V= displacement/time
Which law states that the velocity of an object does not change unless the object is acted upon by an external force?
The first law of motion
Which law states that the force required to accelerate an object at a certain at a certain rate equals the object’s mass times the desired location?
The second law
Which law states that for every action there is an equal and opposite reaction?
The third law
What law states that when the overall external force acting on a system is zero, the momentum of the whole system remains constant?
The law of conservation of momentum
What mathematical principle states than the square of the hypotenuse is equal to the squares of the legs?
The Pythagorean Theorem (c^2=a^2 + b^2)
What is the measure of how quickly an object moves?
Speed
What is the resistance arising to an object’s motion through a fluid or across a surface?
Friction
What is a vector showing the combined effect of two other vectors?
A resultant
What is the SI unit of force?
A newton
What is the amount of gravitational force exerted on an object on the surface of the earth?
Gravity
What is the distance from one of the ridges or threads on the screw’s shaft to the next?
Pitch
What is the branch of physics developed before 1900
Classical Physics
What type of pulley is a combination of one or more fixed pulleys and one or more movable pulleys?
Block and Tackle
What simple machine is considered a circular lever?
Wheel and Axel
What simple machine is a sloping surface that allows an object to be raised without living it straight up?
Inclined Plane
What is a special form of inclined plane that modifies the applied force and directs it to the side?
Wedge
What simple machine holds things into place?
Screw
