causing something to move can need what?
heat energy a disc a meal energy an engine voltage a stick arteries
A B C D E F G H
An engine is needed to provide the thrust for forward motion.
causing something to move can need an engine
causing something to move can need what? (A) heat energy (B) a disc (C) a meal (D) energy (E) an engine (F) voltage (G) a stick (H) arteries