Wheels and Axles
By: Demi & Katrina
Definition of wheels and axle
-An axle is a rod that connects to a wheel or lever
-A wheel and axle involves two objects attached in
the centre, one of which turns the other
Wheel
Axle
What is wheel and axle
• A wheel and axle is a lever that rotates in
a circle around a center point or fulcrum.
The larger wheel (or outside) rotates
around the smaller wheel (axle).
Examples of Wheels and Axles
EXAMPLES
• Bicycle
• Pencil sharpener
• Car
• Roller skates
• Fan
• Wagon
• Windmill
• And more …
Our model is
A bicycle
Bicycles have large wheels so
they go faster. When you pedal,
you power the inside of the wheel.
But the wheel's outer rim turns
around faster and covers
more ground, so your pedaling
has a much greater effect.
Description of how wheels and axle works
A wheel, together with an axle overcomes friction by facilitating motion by rolling. In order for wheels to rotate,
a moment needs to be applied to the wheel about its axis, either by way of gravity,
or by application of another external force
Calculations
• Force
(Mass of an object) x 9.8
0.2 x 9.8 = 1.96 N
• Work
(force) X (distance in meter)
1.96 x 0.4867 = 0.953932
QUIZ TIME
We have 3 questions that you
guys can solve easily if you paid
attention to this presentation. The
person who gets the questions
right will be awarded with a
cookie.
QUIZ
1. what is an
example of wheel
and axle?
List 3
QUIZ
2. How does wheels
and axles work?
Explain simply
QUIZ
3. What part of our
model used wheels
and axles. And What
color is our bicycle? :D
THE END
Thanks for watching