Energy stores, transfers and conservation

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Question 78
Easy

A roller coaster carriage rolls down a track. Figure 1 shows a Sankey diagram representing the energy transfers during this descent. Sankey diagram showing energy transfers for a descending roller coaster carriage. The input energy is a decrease in gravitational potential energy of 1250 J. This transfers into two paths: a useful energy path showing an increase in kinetic energy of 1180 J, and a wasted energy path branching downwards labeled X.

Calculate the value of X.

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Energy stores, transfers and conservation Questions

  1. GCSE
  2. /Physics
  3. /Energy stores, transfers and conservation