PLTW ENGINEERING ESSENTIALS EXAM
COMPREHENSIVE TEST PAPER QUESTIONS
AND SOLUTIONS
◉ resistance force.
Answer: output force applied by a machine
◉ effort distance.
Answer: the distance traveled by the effort force at the input of a
machine
◉ resistance distance.
Answer: the distance traveled by the resistance force at the output of
a machine
◉ force.
Answer: A push or pull exerted on an object
◉ simple machine.
Answer: A machine that does work with only one movement
◉ Lever.
, Answer: a simple machine that consists of a bar that pivots at a fixed
point called a fulcrum
◉ Inclined plane.
Answer: a simple machine that is a flat, sloped surface.
◉ Pulley.
Answer: A simple machine that consists of a rope that fits into a
groove in a wheel
◉ Wheel and Axle.
Answer: a simple machine consisting of two circular objects of
different sizes; the wheel is the larger of the two circular objects
◉ Screw.
Answer: A simple machine that is an inclined plane wrapped around
a central cylinder to form a spiral
◉ Wedge.
Answer: a simple machine that is an inclined plane that moves
◉ Gears.
Answer:
COMPREHENSIVE TEST PAPER QUESTIONS
AND SOLUTIONS
◉ resistance force.
Answer: output force applied by a machine
◉ effort distance.
Answer: the distance traveled by the effort force at the input of a
machine
◉ resistance distance.
Answer: the distance traveled by the resistance force at the output of
a machine
◉ force.
Answer: A push or pull exerted on an object
◉ simple machine.
Answer: A machine that does work with only one movement
◉ Lever.
, Answer: a simple machine that consists of a bar that pivots at a fixed
point called a fulcrum
◉ Inclined plane.
Answer: a simple machine that is a flat, sloped surface.
◉ Pulley.
Answer: A simple machine that consists of a rope that fits into a
groove in a wheel
◉ Wheel and Axle.
Answer: a simple machine consisting of two circular objects of
different sizes; the wheel is the larger of the two circular objects
◉ Screw.
Answer: A simple machine that is an inclined plane wrapped around
a central cylinder to form a spiral
◉ Wedge.
Answer: a simple machine that is an inclined plane that moves
◉ Gears.
Answer: