2 Mechanics
Topics covered at this level. . .
SIMPLE MOTION: Distance/displacement, Speed/velocity, Acceleration.
Plotting & interpreting motion graphs. Kinematic equations of motion.
VECTORS: adding displacements, relative velocities, changes in velocity vectors, measuring and mathematical techniques.
FORCES: Newton's 3 Laws (Inertia, F = ma, action / reaction).
Force vectors, free-body force diagrams,
Free fall under gravity.
PROJECTILE MOTION: predicting the motion of cricket balls & cannon balls using components in vertical & horizontal directions.
CIRCULAR MOTION: explaining & predicting the motion of turning cars, orbiting satellites Equations for constant speed (but changing velocity), centripetal acceleration & forces.
EQUILIBRIUM & TORQUE: Moments and balanced forces.
ENERGY & WORK: W = Fd, Kinetic energy EK = ½ mv2, gravitational potential energy EP = mgh, conservation of energy, springs (F=kx, EP = ½ kx2 ). Power.
MOMENTUM: collisions, explosions, conservation of momentum. Linear and 2D collisions. Impulse. I = FΔt = Δp Elastic/inelastic collisions & EK