Forces
This number is the constant for Earth's gravitational force
What is 9.8m/s^2 or 9.8N/kg
These two types of energy describe moving and stored energy
What is kinetic and potential energy
This definition is mentions the amount of force gets multiplied
What is mechanical advantage
This simple machine has a beam or a rigid rod that pivots on a fulcrum
What is a lever
The definition of this machine measures the useful output work done by a machine compared to the work needed to operate it.
What is efficiency
This definition mentions a push or pull acts on an object
What is force
This definition mentions effort spent when a force applied to an object causing it to be motion in the same direction as the force.
What is work
This definition mentions the force you put into a machine
What is input force
This acronym is useful to figure which class is a lever.
What is FLE 123
This force decreases the efficiency of a machine by turning moving energy into heat
What is friction
This force opposes motion
What is friction
This law is specifically related to energy
What is energy cannot be created or destroyed it can only change forms. (Law of Thermodynamics)
This formula is used to figure out mechanical advantage
What is MA = Fout/Fin
These 6 simple machines are found predominantly in machines we use
What is a pulley, lever, wedge, inclined plane, screw and wheel + axle
This formula is useful to calculate efficiency
What is Wout x 100% / Win
The weight for this desk that has a mass 15 kg
What is 147 N
3 people are applying 400N of push force to a stall car moving it a total of 1500m
What is 600 000 J
The mechanical advantage for this machine that has an input force of 30 N and an output force 600 N
20
This class of lever best describes your forearm
What is a third class lever
This Kettle's efficiency comes from an input work of 2000 J and a useful output work of 1500 J.
What is 70%
The mass of this basketball has a weight of 60N
What is 6.1 kg
The work of this 68 kg woman who jumps a distance of 3.5 m
This machine's input energy that has a mechanical advantage of 12 and an output force of 300 N
25 N
What is the ideal mechanical advantage for a lever that has an effort arm of 5 m and a resistant arm of 2m
2.5
This machine's efficiency comes from its input work of 75 000 J, a mass of 230 kg and a distance of 20m
What is 60.1%