Year 6, Simple Machines

Which type of simple machine is a flagpole an example of?

• Pulley
• Wheel and axle
• Screw
• Lever

Which type of simple machine is a jar lid an example of?

• Pulley
• Wheel and axle
• Lever
• Screw

What is the purpose of threads on a screw?

• To provide a mechanical advantage
• To make work more difficult
• To change the direction of a force
• To concentrate force over a small area

Which type of simple machine is a seesaw an example of?

• Second-class lever
• Pulley
• First-class lever
• Third-class lever

What is the purpose of a movable pulley?

• To change the direction of a force
• To make work more difficult
• To provide a mechanical advantage
• To confuse us

Which type of pulley provides a mechanical advantage?

• Both fixed and movable pulleys
• Movable pulley
• Fixed pulley
• Neither fixed nor movable pulleys

Which of the following is an example of an inclined plane?

• A ramp
• A seesaw
• A jar lid
• A doorknob

Which type of simple machine is a broom an example of?

• Second-class lever
• First-class lever
• Third-class lever
• Pulley

What is the fulcrum in a second-class lever?

• Between the output force and the fulcrum
• Between the input and output forces
• At the end of the lever
• Between the input force and the fulcrum

Which type of simple machine is a nutcracker an example of?

• Pulley
• Second-class lever
• Third-class lever
• First-class lever