Tap a word, then tap its numbered spot on the picture. You can also choose words in the numbered list.

Repeated red carts show successive positions on a supported track: beside a spring, atop a high hill, in a low valley, by curved sound marks, and at a brake with rising heat marks.
Energy on a roller coaster

About this model: Repeated carts show the same cart at different moments. This is a qualitative model: energy spreads to the surroundings through friction and sound. No measured speeds or energy values are shown.

Original PotentELL science illustration

Word bank (5)

Numbered spots

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5