Transmission and transformation of motion Carry the motion

Transmission of motion • A group of simple machines can work together to make

Here are the different systems • Chain and sprocket • Just like on your

Belt and pulley • You pull on the rope and it carries the motion

gears • Gears are toothed wheels • They can transmit the motion and change

Friction wheels • Are a lot like gears but with no teeth • They

Pulley systems • These systems transmit rectilinear motion. • You pull one rope and

Now • answer the memory questions on p 422

Types of motion • There are 4 kinds of motion: – Rectilinear – Alternation

Transformation of motion • Is when you can change 1 kind of motion into

Here are some other systems that do that • Rod and crank changes circular

Cam and follower • Changes circular motion into alternating motion the egg shaped cam

Rack and pinion • Changes circular motion to rectilinear motion • You turn the

Screw and nut • This changes circular into rectilinear motion. • It can be

Now • do the memory check questions on page 425

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Transmission and transformation of motion Carry the motion over a distance And Change the type of motion

Transmission of motion • A group of simple machines can work together to make a system. • A system can transmit or carry the motion from one object to another. • Sometimes they are close together. • Sometimes they are far away.

Here are the different systems • Chain and sprocket • Just like on your bicycle • Your feet turn and move the big sprocket • then the chain carries the circular motion to the little sprocket on the back wheel and makes the bike go

Belt and pulley • You pull on the rope and it carries the motion to bring in the clothes. • Both pulleys turn in the same Direction. The clothes move in a straight line

gears • Gears are toothed wheels • They can transmit the motion and change it’s direction. • Like an egg beater or a clock

Friction wheels • Are a lot like gears but with no teeth • They turn in opposite directions. • One wheel turns the other because of the friction where they touch

Pulley systems • These systems transmit rectilinear motion. • You pull one rope and it goes through the pulleys and lifts a heavy object in a linear direction.

Now • answer the memory questions on p 422

Types of motion • There are 4 kinds of motion: – Rectilinear – Alternation – Circular – Oscillatory

Transformation of motion • Is when you can change 1 kind of motion into another. • You pin wheel changes circular motion in to linear motion

Here are some other systems that do that • Rod and crank changes circular motion into alternation motion to • Drive your car or a train

Cam and follower • Changes circular motion into alternating motion the egg shaped cam is close to the rod then far from the rod as it turns

Rack and pinion • Changes circular motion to rectilinear motion • You turn the focus knob and the lenses go up and down on the microscope.

Screw and nut • This changes circular into rectilinear motion. • It can be used to lift you ceiling • or squeeze • or even change a tire.

Now • do the memory check questions on page 425