Primary 4 Simple Machines & Structures

What kind of simple machine is pictured here?

• Lever

• Wedge

• Pulley

• Inclined Plane

What type of structure is pictured?

• frame

• shell

• solid

Which two examples use a pulley to make work easier?

• knife & axe blade

• lightbulb & screw

• flagpole hoist & window blinds

• catapult & teeter totter

Is this picture a structure?

• yes

• no

What kind of simple machine is pictured here?

• Axle

• Screw

• Wedge

• Fastener

Which of these objects use a wedge to make work easier?

• knife & axe blade

• lightbulb & screw

• flagpole hoist & window blinds

• catapult & teeter totter

What type of structure is this picture?

• frame

• shell

• solid

Which is an example of someone using a simple machine to do work?

• a boy runs across a football field
• a banker counts money
• a mother pushes a stroller up a ramp
• a girl eats a sandwich

What kind of simple machine is pictured here?

• Screw

• Wedge

• Lever

• Inclined Plane

Which simple machine has an inclined plane wrapped around a rod?

• lever

• pulley

• screw

• wedge