What did I do?
We made a car out of a set of materials that could keep a egg from cracking when hitting a concrete wall from a ramp. Our constraints where :
-only approved construction materials can be used to build your
car
-the car can be no wider than 6.5 cm from the outside of one
wheel to the outside of the opposite wheel
-the car can be no longer than 16.5 cm
-once in the car the egg must be visible
-the car must freely roll down the ramp, no sliding allowed
-1 meter of tape
no parachutes, wings or propellers may be used to slow your car
-the straw can only be used as an axle housing
-the egg must be easily placed in and removed from your car
-once on the track the car is not allowed to be touched
-only colored pencils and markers can be used to decorate your
car
-your safety system must have at least two parts
-no video watching in class to make paper shapes
-all designs must be built in class.
What did I learn?
We learned how Newton’s first law of motion was used when the egg car hit the wall it changed in motion because as stated, “A object in motion will stay in motion unless acted on by another external force.” The concrete wall was that external force because if the higher force exerted on to the wall the wall will exert more force. And Newton’s third law was used in this experiment. “for action has an equal and opposite reaction” The car rolling down was the action and hitting the wall was the reaction and when the opposite reaction was the car going backwards after hitting the car and the equal reaction was the will hitting back on the car and causing the egg to crack but with safety devices it did not crack.
What Worked?
Our design of the car was very compact light and worked very well and our mechanism was very successful and our egg did not crack. we had a elephant like nose to it to stop the force.
What did not Work?
Our car tipped near the end and when testing the wheels would not roll so I think we can improve by distributing the weight. And the wheels have a smoother roll.
Personal Relevance
I learned how different safety mechanisms help like how if you have a longer front it will absorb the impact and making the car with airbags air very important.