hola, me acabo de mudar a españa y voy a empezar 4to de la eso, el caso es que en mi pais no dan fisica hasta el equivalente a 4to de la eso, por lo que no tengo muchas bases, que debería estudiar/repasar para que no me vaya tan mal?

Complete these sentences. if a roller coaster train has a potential energy of 1,500 j and a kinetic energy of 500 j as it starts to travel downhill, its total energy isj. once the roller coaster train gets closer to the bottom of the hill, its kinetic energy increases to 1,100 j, and its potential energy decreases to j. when the train reaches the bottom of the track and is traveling along the ground, its kinetic energy isj.