Mechanisms KS3 Quiz

What type of simple machine is a seesaw?

• Screw

• Wheel and axle

• Pulley

• Lever

In a pulley system, what is the purpose of a fixed pulley?

• To keep the load stationary

• To decrease the mechanical advantage

• To increase the speed of the load

• To change the direction of the force applied to the load.

What is the mechanical advantage of a lever with a longer effort arm compared to a shorter effort arm?

• The mechanical advantage is inversely proportional to the effort arm length

• The mechanical advantage is greater

• The mechanical advantage is lower

• There is no difference in mechanical advantage

What is the purpose of gears in a machine?

• Transmit power and change speed or direction of motion

• To create noise

• To make the machine look more complicated

• To make the machine heavier

What is the mechanical advantage of a pulley system with 3 supporting ropes?

• 10

• 3

• 5

• 2

What type of simple machine is a wheel and axle?

• Lever

• Wheel and axle

• Pulley

• Inclined plane

In a lever system, where is the fulcrum located in a first-class lever?

• At the end of the lever opposite the effort

• Between the effort and the fulcrum

• Between the effort and the load

• At the end of the lever opposite the load

What is the mechanical advantage of an inclined plane with a longer slope compared to a shorter slope?

• Greater

• Smaller

• No difference

• Equal

What is the purpose of a compound machine?

• To perform a specific task by combining two or more simple machines together.

• To make tasks more difficult

• To simplify tasks

• To reduce the number of moving parts

What is the mechanical advantage of a gear system with 20 teeth driving a gear with 40 teeth?

• 2

• 10

• 5

• 15