Hello,
Well a week ago our science teacher gave us a project. We need to build a small car using a plastic bottle (591 ml), that can advance using no electricity whatsoever, and must be propelled automatically (eg. no pushing the car). There's a list of materials you can use, and you can only use these and no others:
Materials:
2 balloons from a height of 30 cm when they are inflated
An elastic band with a length of 1 meter
20 wooden sticks (the type that they use in the doctor's office)
Glass beads or other objects that may give weight to the vehicle
A piece of wood with the dimensions of 305 mm x 10mm x 10mm
2 sticks of wood with a length of 450 mm and a diameter of 7 mm
2 sticks of wood (kebab-style) with a length of 305 mm and a diameter of 2 mm
A plastic bottle of 591 ml (such as sports drinks, used for main structure of the car)
2 pieces of foam core board 305 mm x 305mm x 5mm
A paperboard of 305 mm x 305 mm
10 rubber elastics
4 gears
3 strings a length of 1 m
10 straws
A mousetrap
A plastic tube with a length of 70 mm and a diameter of 8 mm
A plastic tube with a length of 70 mm and a diameter of 16 mm
A plastic tube with a length of 70 mm and a diameter of 23 mm
A piece of corrugated polyethylene 205 mm x 300 mm x 5 mm
A piece of polystyrene rigid foam (non-expanded) 305 mm x 180 mm x 3 mm
4 pulleys
2 tension springs
4 styrofoam cups
And the things you can use to attach them together:
Finishing nails
Carpenter's glue
Hot glue
Iron wire
Contact glue
Masking tape
The bottle's cap will be mounted on the car to transport a regular golf ball. It cannot be attached permanently (the golf ball) to the cap.
The car must be light enough to be easily transportable by hand.
The car must look good.
It must drive on a flat floor and there can be no human factor to propel it. It must travel the longest distance possible.
We just can't think of a way to make it move!
Thanks for helping me out!
EDIT: For the french people, here's the original paper: http://i18.photobucket.com/albums/b127/sal...02/Materiel.png, and the paper with the rules: http://img177.imageshack.us/img177/9241/conceptzt1.png
Well a week ago our science teacher gave us a project. We need to build a small car using a plastic bottle (591 ml), that can advance using no electricity whatsoever, and must be propelled automatically (eg. no pushing the car). There's a list of materials you can use, and you can only use these and no others:
Materials:
2 balloons from a height of 30 cm when they are inflated
An elastic band with a length of 1 meter
20 wooden sticks (the type that they use in the doctor's office)
Glass beads or other objects that may give weight to the vehicle
A piece of wood with the dimensions of 305 mm x 10mm x 10mm
2 sticks of wood with a length of 450 mm and a diameter of 7 mm
2 sticks of wood (kebab-style) with a length of 305 mm and a diameter of 2 mm
A plastic bottle of 591 ml (such as sports drinks, used for main structure of the car)
2 pieces of foam core board 305 mm x 305mm x 5mm
A paperboard of 305 mm x 305 mm
10 rubber elastics
4 gears
3 strings a length of 1 m
10 straws
A mousetrap
A plastic tube with a length of 70 mm and a diameter of 8 mm
A plastic tube with a length of 70 mm and a diameter of 16 mm
A plastic tube with a length of 70 mm and a diameter of 23 mm
A piece of corrugated polyethylene 205 mm x 300 mm x 5 mm
A piece of polystyrene rigid foam (non-expanded) 305 mm x 180 mm x 3 mm
4 pulleys
2 tension springs
4 styrofoam cups
And the things you can use to attach them together:
Finishing nails
Carpenter's glue
Hot glue
Iron wire
Contact glue
Masking tape
The bottle's cap will be mounted on the car to transport a regular golf ball. It cannot be attached permanently (the golf ball) to the cap.
The car must be light enough to be easily transportable by hand.
The car must look good.
It must drive on a flat floor and there can be no human factor to propel it. It must travel the longest distance possible.
We just can't think of a way to make it move!
Thanks for helping me out!
EDIT: For the french people, here's the original paper: http://i18.photobucket.com/albums/b127/sal...02/Materiel.png, and the paper with the rules: http://img177.imageshack.us/img177/9241/conceptzt1.png