Mechanical Systems Chapters 1-4 test
Questions and Verified Correct Answers
Effort/In answer - What are we putting into the machine
Effort force = applied by human
Load/out answer - What are we getting out of the machine
load force = weight of the mass being acted on
f=ma when a=9.81m/s2
inclined plane answer - a slanted surface along which a force moves an object to a higher
point
wedge answer - a simple machine that is an inclined plane that is used to cleave something
apart
lever answer - a simple machine that consists of a bar that pivots at a fixed point called a
fulcrum
wheel and axle answer - a simple machine consisting of two circular objects of different sizes
screw answer - A simple machine that is an inclined plane wrapped around a central cylinder
to form a spiral
pulley answer - A simple machine that consists of a grooved wheel with a rope or cable
wrapped around it.
, load of an inclined plane answer - the hight the object in being moved
effort of an inclined plane answer - the force used to push an object up the ramp
load of a pulley answer - the object on one end of the pulley
effort of a pulley answer - what you are pulling on to lift the load
class 1 lever answer - A lever in which the fulcrum is between the load and the effort. ex.
scissors, crowbar, seesaw
class 2 lever answer - a lever where the load is in between the fulcrum and the effort ex.
wheelbarrow, nutcracker
class 3 lever answer - a lever where the effort is in between the fulcrum and the load, ex.
broom, hockey stick
fulcrum answer - The fixed point around which a lever pivots
load arm answer - the fulcrum to the load
effort arm answer - fulcrum to the effort
what makes machines work easier? answer - changing amount of force, amount of distance,
and direction force is applied
Questions and Verified Correct Answers
Effort/In answer - What are we putting into the machine
Effort force = applied by human
Load/out answer - What are we getting out of the machine
load force = weight of the mass being acted on
f=ma when a=9.81m/s2
inclined plane answer - a slanted surface along which a force moves an object to a higher
point
wedge answer - a simple machine that is an inclined plane that is used to cleave something
apart
lever answer - a simple machine that consists of a bar that pivots at a fixed point called a
fulcrum
wheel and axle answer - a simple machine consisting of two circular objects of different sizes
screw answer - A simple machine that is an inclined plane wrapped around a central cylinder
to form a spiral
pulley answer - A simple machine that consists of a grooved wheel with a rope or cable
wrapped around it.
, load of an inclined plane answer - the hight the object in being moved
effort of an inclined plane answer - the force used to push an object up the ramp
load of a pulley answer - the object on one end of the pulley
effort of a pulley answer - what you are pulling on to lift the load
class 1 lever answer - A lever in which the fulcrum is between the load and the effort. ex.
scissors, crowbar, seesaw
class 2 lever answer - a lever where the load is in between the fulcrum and the effort ex.
wheelbarrow, nutcracker
class 3 lever answer - a lever where the effort is in between the fulcrum and the load, ex.
broom, hockey stick
fulcrum answer - The fixed point around which a lever pivots
load arm answer - the fulcrum to the load
effort arm answer - fulcrum to the effort
what makes machines work easier? answer - changing amount of force, amount of distance,
and direction force is applied
