acceleration of free fallthe acceleration due to the pull of the Earth on a body |
average speedthe ratio of distance travelled to total time taken |
average velocitythe ratio of displacement to total time taken |
coefficient of dynamic frictionthe ratio of the force of friction to the normal reaction force on a body while the body is sliding on a surface |
coefficient of static frictionthe ratio of the maximum force of friction that can develop between two bodies to the normal reaction force on a body while the body is at rest |
conservation of energythe principle that energy cannot be destroyed or created but can only be changed from one form into another |
conservation of momentumwhen the net force on a system is zero, the total momentum of the system is constant |
conservative forcesforces for which work done is independent of the path followed |
conserveda quantity that stays the same before and after interaction |
contact forceanother name for a reaction force |