Skip to main content

Flying with Newton’s Laws

This article originally appeared on The Eurekas:

Congratulations to our 2023 runner-up, Khadijah from Sharples High School. Khadijah created a brilliant video to demonstrate Newton’s Laws of Motion. Take a look at her entry below: 

Behind my passion for engineering, there is a lot of physics to reveal…

Since my sister loves dolls, I created a zipline to send her doll down into a wooden-carved house, from her bedroom window! Attempting using a designed transportation device (which I observed the mass created too much of a resistant force) a range of materials, was also used to find the most effective.

I used plywood to create the product, which transferred different energy stores to the wood eg. cutting the wood- kinetic energy to thermal energy.

The contact between the source and the zipline is connected using satin to generate enough flow before stopping, from a moderate velocity- due to the difference in height.

This also proves Newton’s 3 laws of motion:

  1. An object will not change its motion unless a force acts on it. The external force applied can be considered to be gravity, which causes the doll to start moving.
  2. A force to be equal to mass x acceleration. Acceleration is produced when a force acts as a mass. The greater the mass, the greater the force required.
  3. When two objects interact, equal magnitude of forces are applied in opposite directions. As the doll accelerates, an equal force of air resistance opposes.