Collisions, Explosions, and Impulse
Knowledge you need to have:
Knowledge of energy interactions involving the total kinetic energy of systems of objects undergoing inelastic collisions, elastic collisions, and explosions.
Knowledge that the impulse of a force is equal to the area under a force-time graph and is equal to the change in momentum of an object involved in the interaction.
Skills you need to develop:
Use of Newton’s third law to explain the motion of objects involved in interactions.
Interpretation of force-time graphs involving interacting objects.
Use of data from a force-time graph to solve problems involving the impulse of a force, the average force and its duration.
Use of the principle of conservation of momentum and an appropriate relationship to solve problems involving the momentum, mass and velocity of objects interacting in one dimension.
Use of an appropriate relationship to solve problems involving the total kinetic energy of systems of interacting objects.
Use of an appropriate relationship to solve problems involving mass, change in velocity, average force and duration of the force for an object involved in an interaction.
