Matching Pairs Physics knowledgeOnline version Match the following terms with their meaning by Chonny Dorcas Philip 1 Acceleration 2 Newtons first law? 3 Gravitational force? 4 Kinetic energy? 5 Friction? An object remains in its state of rest unless acted upon by an external force. Energy of an object in motion Force that opposes motion of an object on a surface. A force that attracts any two objects with mass. Rate of change of velocity of an object