Rock Street, San Francisco

Dependent Variable: The results of speed and distance from the car responding to the materials Rationale: In this experiment, he challenge is to build a balloon powered car from homemade materials that can travel at least 8 meters. According to Newton’s Third law, it is possible to accomplish this objective. Force is any push or pulls and can be measured in Newton’s. The first law states that an object at rest will remain at rest unless acted upon by an opposing force. It also says that if an object is in motion will stay in motion unless acted upon by an unbalanced force.Also, during research it was found that Newton’s 2nd law states that an object’s acceleration depends on the mass of the object and the force acted upon it.

This law is expressed in the equation, F (force) = M (acceleration). The third law explains that when an object exerts force on another object that object exerts force back. The objects would equal each other in magnitude but go the opposite direction. Materials: 1 straw 9 inch balloon 2 coasters Hot glue/Duct tape 2 plastic lids 1 skewer Procedures Part A Put on safety goggles first because there will be many sharp and hot objects used in making the car.

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Cut the bendable part off a straw. Insert a wooden skewer so that it moves freely within the straw. Push one end f the skewer through the middle of one of the coasters and repeat on the other side. Hot glue the wheels in place but are sure to only glue it on the wooden skewer and not the straw. Keep in mind that the skewer still needs to be able to move freely within the straw. Get two plastic lids that are the same size. Hot glue one on each side of the car next to the coasters but leave a small space between. Make sure that the lids are level so the car will roll straight.

Blow a balloon up and stick a piece of duct tape to the bottom.Stick the balloon to the middle straw and get ready to race. Procedures Part B Blow the balloon up as much as you can without popping it. Hold the opening Roll up a piece of duct tape and stick it to the bottom of the so no air escapes. Balloon. Stick the balloon to the straw that is on the wooden skewer while still holding the opening. Sit the car on the ground and aim it in the direction it is supposed to roll with the opening of the balloon pointing the opposite direction.

Let go of the opening of the balloon and watch the car roll. Observations: Qualitative: As the opening of the balloon was released, the car started moving.