True or false ... Gears give a mechanical advantage?
<

br/>

Physical processes -Force and motion - Gea
r

s and pulleys />

Learning Points
Gears can be


used to gain mechanical advantage.
...

What is it? ... It's a pulley!
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Physical processes - Force and motion - Gea
r

s and pulleys


A Twig Tidbit Film - Jigsaw. An image is slowly revealed as pieces of the jigsaw are removed. The children...

Six different clips are shown, five showing examples of the use of pulleys ... can you spot them?
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Physical processes - Force and motion - Gea
r

s and pulleys


A Twig Tidbit Film - Spot the Difference....

Did you know that a seesaw, a wheelbarrow and a fishing rod are all types of lever?
<

br/>

Physical processes - Force and motion - Gea
r

s and pulleys />

Learning Points
A lever is a stif
f

bar that...

Discover how bike gears make pedalling easier.
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br/>

Physical processes -Force and motion - Gea
r

s and pulleys />

Learning Points

G

ears make pedalling a bike easier.


A Twig...

Investigate how levers make work easier.
<

br/>

Physical processes -Force and motion - Gea
r

s and pulleys />

Learning Points
A lever is


a machine that makes work easier.


A si
m

ple...

Discover how a simple system of pulleys helped the Egyptians build some of the wonders of the world.
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Physical processes -Force and motion - Gea
r

s and pulleys />

Learning Points
Pulleys...

Howcast -Learn how to clean a bike chain with a degreaser or cleaner and either wet lube or dry lube from expert Jesse McDonough in this Howcast video.

Dr. Forrester describes compound machines and the simple machines that make them.

In this video, we'll explore the basics of induction motors. We'll cover topics like the theory behind induction motors, the different types of induction motors, and how induction motors work.