Chapter 7 - Newton's Laws Flashcards
State Newton’s First law
An object will remain at rest or move with a constant velocity unless acted upon by a resultant force.
State Newton’s third law
When two objects interact, they exert equal and opposite forces on each other.
What is the difference between an elastic and inelastic collision?
In an elastic collision the total kinetic energy is conserved, in an inelastic collision it is not.
State the principle of conservation of momentum
For a closed system, the total momentum in a specific direction remains constant, as long as no external forces act on the system.
State Newton’s second law
The resultant force acting on an object is directly proportional to the rate of change of momentum.
What does the area under a force-time graph represent?
Impulse
What is the impulse of a force?
The change in momentum
