Roller coaster
device · 1884 · Electric age
Cars on inclined rails.
What it is made of
- Roller chain — has part. A chain lift.
Principles and materials it uses
- Conservation of energy — uses. Potential energy turns into kinetic energy.
- Railway track — uses. Rails.
- Wood — is made of. The first roller coasters were wooden.
- Steel — is made of. The rails are steel.