2ºESO. Machines and mechanisms

THE WORKING WAY OF THIS SIMPLE MACHINE IS BASED ON

• WHEELS
• PULLEYS
• LEVERS
• CRANKS

THERE ARE THREE TYPES OF PULLEYS:

• SIMPLE, MIXED AND COMPOUND
• SIMPLE, DOUBLE AND FIXED
• FIXED, MOVABLE AND COMPOUND
• SIMPLE, MOVABLE AND COMPOUND

THE IMAGE ABOVE IS A:

• DOUBLE PULLEY MECHANISM
• WORM GEAR MECHANISM
• FRICTION DRIVES MECHANISM
• GEARS MECHANISM

WHAT CLASS ARE ALL THE  LEVERS IN THE PICTURE? 

• 1ST
• 2ND
• 3RD
• 1ST AND 2ND

• Wedge

• Lever

• Pulley

• Wheel and axle

• Inclined plane

• Pulley

Crane is a ...

• Tool

• Simple machine

• Complex machine

Types of machines

• Simple and complete machines

• Simple and compound machines

• Simple and non-simple machines

• Compound and essential machines

Types of simple machines

• Wheel, lever, pulley and inclined earth

• Chair, lever, pulley

• Wheel, arrow and inclined circule

• Wheel, lever, pulley and inclined plane

What are compound machines?

• Consist of one simple machines like a wheel

• Consist of two or more simple objects

• Consist of two or more compound machines

• Consist of two or more simple machines