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Physical Science
Updated: 9/14/2020
Physical Science
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Storyboard Text

  • After conducting some research I believe that airbags cause more fatalities than seatbelts but both are essential in preventing people from being severely injured after having accidents. According to NHSTA, there were 284 airbag-related fatalities through 2007. Most seatbelts related deaths were because the victims were not wearing a seatbelt during the accident.
  • The new car has very strong seatbelts (which is a pulley) that restrict sudden movement and a very small airbag that covers the center of the steering wheel. There are a wheel and axel in the tires. There are pedals which are inclined planes and wedges which are brakes.
  • Loose seatbelts and huge airbags popping out in regular cars can kill many people and adding on the impact of a car at full speed doesn't help.With a regular car... no one survives.
  • If the new car crashes with a regular car, it is well equipped to protect everyone inside. As soon as the people in the car move in response to the impact, the seatbelts lock and prevent movement. The small airbag covers the center of the steering wheel and everyone is safe. The regular car crashes and the airbags pops out and hits the driver in the face, which breaks his neck because his seatbelt was loose.
  • BANG
  • Newton's first law states that objects at rest will stay at rest unless acted on by an unbalanced force or objected in motion will stay in motion unless acted on by an unbalanced force. The seatbelts in the new car prevent you from launching in the air like a projectile when the car breaks hard or gets hit because it stops the object in motion(you) by acting as an unbalanced force(seatbelt)
  • Newton's second law tells us that applying a force on an object produces an acceleration that is proportional to the mass of the object. When you are wearing a seatbelt it causes the force(you) to decelerate in the impact so that you aren't severely injured or hurt. For Newton's 3rd law, for every action, there is an equal and opposite reaction. If a car crashes into a wall, the action force is the car pushing on the wall and the reaction force is the wall pushing on the car.
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