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Your Challenge In teams of 2, design a vehicle that can go down an inclined plane and stop as close to the target as possible.
RULES – Cycle 3 • Mandatory material for designing your vehicle: a plastic bottle (2 L max. ) • Vehicle must stop at targets: A and C
Are you wondering what a chassis is? We will RULES – DESIGN PROCESS soon do an activity that The maximum length permitted for the vehicle is 50 cm. will help you understand what it is ! The vehicle must roll down the inclined plane. Competitors must make their own wheels and axles from everyday objects. If participants use a chassis, they will have to make it themselves.
No hazardous products please ! I don’t want to get hurt ! RULES - DESIGN PROCESS Materials not permitted: - Components that can cause injury or alter the competition area; Liquids; Hazardous products; Any chassis from a commercial toy; Wheels and axles coming from toys. Teams can make changes to their vehicle between rounds.
RULES – AT THE COMPETITION The team sets up their vehicle at the start zone. The wheels of their vehicle must be touching this zone. At the start signal, the team must release the vehicle - pushing is prohibited.
THE INCLINED PLANE Mandatory start zone The team sets up their vehicle at the start zone. The wheels of their vehicle must be touching this zone. Box of paper #1 Inclined plane Box of paper #2
Now that you’ve seen the rules, let’s have some fun!
DID YOU KNOW? The wheel is considered one of the most important inventions created. It revolutionized work by making it easier to transport heavy loads. It also made it easier to move around.
HISTORY OF THE TIRE In 1888, John Dunlop obtained a patent for his invention : the first commercial pneumatic rubber tire. He filled an inflatable rubber tube with air, fitted it onto the metal wheel of his son’s tricycle… and invented the rubber tire!
ACTIVITY 1 : Let’s Get Moving! Part A The wheel is a disc that rotates on its axis through its center. The wheel is a simple machine since it has an axle that allows it to turn on itself. The chassis is the frame that supports the vehicle. Axle Chassis Wheel
Activity 1 : Let’s Get Moving! Part B • Look at the suggested material. • We are going to find a way to build a simple rolling machine! • Let’s try an activity to prepare us!
TIME TO USE YOUR IMAGINATION… Which everyday objects can be used to make wheels? Here are some more ideas. Bottle caps Corks Old compact discs Lids Spools or bobbins
TIME TO USE YOUR IMAGINATION… Which everyday objects can be used to make the axles? Here are some more ideas: Straws Wooden skewers Pencils Wooden dowels Empty pen or marker tubes PVC tubes AXLE
TIME TO USE YOUR IMAGINATION… Andthat howwe’ve wouldgot youall Now How would you Which objects would you use to connect the wheels to the axle? PS : Remember that you these great ideas, how connect the axle and How would you connect Incredible! connect the axle cannot pierce the plastic would you answer the wheels together? the wheels to your Here are some more ideas: bottle! to the wheels? following questions? vehicle? Nuts and bolts Corks Brass fasteners Tape Pipe cleaners Beads White glue Plasticine Hot glue
CAUTION! The following slides propose examples of wheels and axles. You can choose to view them before, during, or after the activity.
Ideas for wheels and axles! Coroplast and wooden skewer Straw and wooden skewer Illustration : cdpsciencetechno. org Photos: Classe de Nathalie Michaud 1 re année CSRDN
BUILD IT! a o t le x a d n a ls e e h Connect your w ! it t s e t d n a is s s a h c
What Happens When… - the wheels are not properly secured to the axle? - the axle is not secured to the center of the wheel ? - the axles are not the same length? - the axles are not placed parallel? - the wheels on an axle are not the same size?
What Happens When… continued - the wheels are different thicknesses? - the wheels are different sizes? - Different materials are used for the wheels (plastic, wood…)? - the vehicle is heavier or lighter? - the freedom of movement of the wheels on the axle varies?
- Slides: 24