A roller coaster car starts from rest at the top of a hill at point P and rolls down the track. As it reaches the lower section, the brakes are applied, bringing the car to a complete stop at point Q.
Which of the following describes the sequence of energy changes that take place from point P to point Q?
gravitational potential energy →\rightarrow→ kinetic energy →\rightarrow→ thermal energy
gravitational potential energy →\rightarrow→ thermal energy →\rightarrow→ kinetic energy
kinetic energy →\rightarrow→ gravitational potential energy →\rightarrow→ thermal energy
kinetic energy →\rightarrow→ thermal energy →\rightarrow→ gravitational potential energy
229 exam-style questions on CIE IGCSE Physics 1.7.1a Energy stores and energy transfers. Each one has a worked solution and a mark scheme showing where the marks go.