Work, energy, power and momentum

Abstract

After reading this chapter you should

• know how energy, work and power are related

• know in what units work, energy and power are measured

• know that the law of conservation of energy applies to all systems

• be able to describe what happens when masses collide

• understand what momentum is

• know the difference between internally and externally applied forces

• know Newton’s third law of motion

• understand that an impulse causes a change of momentum

• understand how rocket propulsion works.