Riding in a Car

Brittney Carlson

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The Question

How does science affect riding in a car?

Answer:

Friction:
Between the car tires and the road, friction is occuring. The weather and the type of road you are driving on affects how strong the friction is between the car and the road. For example, when it rains out you have less friction because the water is in between the road and the tires of your car. There are 2 types of friction, static and kinetic. Being in a car would be kinetic friction. Kinetic friction is when friction is happening between 2 objects sliding past eachother which in a car, would be the road and the tires sliding past one an other making it kinetic.

Link to online video:
http://www.youtube.com/watch?v=w6H3L_V96Wk


Inertia

Inertia is taking place in a car when you go stop. Inertia is part of Newton's first law of motion that says that an object in rest will stay at rest and an object in motion will stay in motion unless acted upon by and unbalanced force. When the car is moving, you are moving with it just sitting there in the car. When the car stops you will keep going unless an unbalanced force stops you. This is where inertia takes place. A seatbelt helps you stop because it is a force that keeps you from still going forward.

Speed:
In order to find the ‚Äčspeed of a car you need to know the distance that it traveled and how fast it got there. To find the speed once you have the information you need you use the equation d=vt. Which is distance = velocity x time. For example, if a car went 120 miles in 2 hours, your equation would be the distance, (d) 120 miles divided by the time (t) 2 hours which would be 60 mph.


Newton's Second Law of Motion:

According to Newton's 2nd Law of Motion if an unbalanced force does act on the car, the car will accelerate. If a car is sitting at a red light and the light turns green, you step on the gas. That means that you have applied an unbalanced force to the car. As a result the car increases in speed which means that it accelerates.

Newton's Third Law of Motion:
Newton's Third Law of Motion says that anytime you exert a force on something, that something must exert an equal but opposite force on you. Suppose that as your car is going down the highway you have a head on collision with a big truck. The mass of the truck is way bigger than the mass of your car. Under this condition the force exerted on the truck by your car will be identical in magnitude to the force that the truck uccurs on your car.





Bibliography:

My Brain
http://www.schoolforchampions.com/science/motion.htm
http://physics.info/velocity/
http://www.experts-exchange.com/Programming/Game_Development/AI_Physics/Q_21070059.html
http://en.allexperts.com/q/Physics-1358/Physics-car-1.htm

Link to online video:
http://www.youtube.com/watch?v=w6H3L_V96Wk