SCI - Lesson 2

• LINEAR MOMENTUM - A measure of the difficulty encountered in bringing an object to rest.
• IMPULSE - The force needed to produce a change in the body’s momentum through combination of changes in it’s mass and/ or velocity
• ELASTIC - A collision in which both kinetic energy and momentum are conserved. The colliding bodies are parted after the collision.
• INELASTIC - A collision in which the total kinetic energy after colliding is less than before the collision.
• IMPULSE MOMENTUM EQUATION - Interprets a variety of phenomenon ranging from impulses occurring in athletics, car collisions, and even that of space rockets.
• CONSERVATION OF MOMENTUM - When two objects collide, there are short term forces that act on them upon contact.
• Perfectly elastic collision- The total kinetic energy is the same before the collision as after the collision.
• •Perfectly inelastic collision- Objects “ stick together” after the collision and move as a single unit at the same velocity.
• Elastic collision- Does not meet the criterion for a perfectly inelastic collision
• types of collision

  • perfectly elastic collision

  • perfectly inelastic collision

  • elastic collision