BICYCLE

WHEEL AND AXLE

• There is a wheel and axel
• In the front and back wheel
• The wheels make the bike able to move

LEVER

• The lever on the bike is the brake
• It can slow down the bike

PULLY

• The pulley on the bike is the chain
• The chain helps the wheel move
• The chain starts moving when you pedal

WEDGES

• There are stubs on the pedal that are wedges
• They help you keep your grip on the pedals

FORCES

GRAVITY

• Gravity pulls the bike toward the earth
• When you jump gravity works on the bike and you
• Also when you are going down a hill
• The force is valence because the ground is pushing up and the gravity is pushing down

FRICTION

• When you are going fast the wheels are creating friction on the ground
• And there is friction when you use the brakes
• Friction can balance and unbalanced
• If the object is moving the Force is unbalance and the opposite for balanced

THRUST

• Thrust is working with the bike when you pedal
• Thrust can make you go fast
• It depends on how much drag

DRAG/WIND RESISTANCE

• Drag works against you when you move
• Drag can slow you down
• It depends on how much trust