Momentum and Collisions
Completion requirements
Pori drwy'r eirfa gan ddefnyddio'r mynegai hwn
Arbennig | A | B | C | CH | D | DD | E | F | FF | G | NG | H | I | L | LL | M | N | O | P | PH | R | RH | S | T | TH | U | W | Y | Y CYFAN
A
Average forceThe average force acting during a time interval. | |
C
CollisionAn interaction in which objects exert forces on each other over a short time. | |
Conservation of momentumThe principle that total momentum remains constant in an isolated system. | |
Contact timeThe duration over which objects interact during a collision. | |
Crumple zoneA vehicle structure designed to deform during a collision and increase stopping time. | |
Change in momentumThe difference between final and initial momentum. | |
D
DeformationA change in an object's shape. | |
E
Elastic collisionA collision in which both momentum and kinetic energy are conserved. | |
ExhaustMaterial expelled from a propulsion system. | |
ExplosionAn interaction in which parts of a system move apart as stored energy is released. | |