Pulley Systems Quiz

What is a pulley?

• A device that changes the direction or magnitude of a force

• A type of lever

• A type of screw

• A type of wheel

How do fixed pulleys make work easier?

• By doubling the input force

• By reducing friction

• By changing the direction of the force applied

• By increasing the amount of force

What is the mechanical advantage of a fixed pulley?

• 2 to 1

• 3 to 1

• 4 to 1

• 1 to 1

What is the mechanical advantage of a movable pulley?

• 1 to 1

• 2 to 1

• 3 to 1

• 4 to 1

How can pulleys be used in a system to increase mechanical advantage?

• By arranging multiple pulleys in a row

• All of the above

• By using nested pulleys

• By using a block and tackle system

What is the advantage of using a block and tackle system?

• It is less efficient than other pulley systems

• It decreases the mechanical advantage

• It increases the speed of lifting

• It reduces the amount of force needed

What were some early uses of pulleys?

• All of the above

• Lifting materials to workers constructing tall buildings

• Hoisting sails on ships

• Lifting and transporting water in irrigation systems

What is the purpose of movable pulleys?

• To increase the amount of force

• To reduce friction

• To magnify the effort force

• To change the direction of the force applied

Why were pulleys used in early construction of tall buildings?

• To lift materials to workers at height

• To change the direction of the force applied

• To increase the speed of lifting

• To decrease the amount of force needed