wheels and axles

Wheels and Axles

By: Demi & Katrina

Axle

Wheel

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

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

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

A bicycle

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