Why do we need seatbelts? Most of us don't question this. This activity visually demonstrates inertia--how your body keeps going after the car has been stopped by a collision. This activity is set up like a lab, but would work just as well as a station. The directions are written directly to the students so you don't have to introduce them. This is a great addition to a study of Newton's laws of motion.

 

Concepts Addressed

  • Objects in motion tend to remain in motion. 
  • Objects at rest tend to remain at rest. 
  • Unbalanced or outside forces produce acceleration (a change in motion).


Materials Needed per setup: 1 Pull-back car, putty, 2 pennies or coins

 

Prep Needed  Gather supplies

Teaching Time   20-30 min
 

Related Labs Motion and Newton's Laws

Force and Motion: Inertia and Why We Use Seatbelts

$3.00Price

    Answer Keys and Teacher Notes address most questions and issues that might arise in this study—you shouldn’t have to do any outside research unless you want to.

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