pulley
Pulleys redirect force or provide mechanical advantage. This topic is part of Simple Machines within Science & Nature. This page currently draws on 8 supporting questions, with answers and bonus facts available below.
pulley trivia questions
A pulley uses a grooved wheel and what?
Answer: Rope or cable
Bonus fact: Pulleys redirect force or provide mechanical advantage.
A single fixed pulley mainly changes what?
Answer: Direction of force
Bonus fact: It offers little ideal force multiplication.
What arrangement of multiple pulleys can provide substantial mechanical advantage?
Answer: Block and tackle
Bonus fact: Multiple supporting rope segments reduce required input force.
A construction crane is mainly used to do what?
Answer: Lift heavy objects
Bonus fact: Cranes use cables, pulleys, booms, and counterweights to lift and move heavy loads.
What drives a typical car alternator?
Answer: Engine belt
Bonus fact: A belt turns the alternator pulley.
What rope is commonly used to raise a flag on a pole?
Answer: Halyard
Bonus fact: The halyard runs through a pulley at the top.
What fitting at the top of many flagpoles guides the halyard?
Answer: Pulley
Bonus fact: The rope passes over a pulley before being secured below.
How many classical simple machines are commonly taught?
Answer: Six
Bonus fact: They are lever, wheel and axle, pulley, inclined plane, wedge, and screw.