Kinematics (運動學): the study of motion (position, velocity and acceleration) without considering the forces causing the acceleration.
Velocity (速度): the rate of change of particle’s position.
Acceleration (加速度): the rate of change of particle’s velocity.
Rectilinear Motion (直線運動): motion along a straight line.
Curvilinear Motion (曲線運動): motion along a curved path.
Uniform Motion (勻速運動): motion with constant speed along a straight line.
Displacement (位移): the change in position vector of a particle.
Projectile Motion (拋射運動): the motion of a point mass projected into the air, subject to gravity.
Tangential Acceleration (切線加速度): acceleration that only changes the magnitude of particle’s velocity.
Centripetal Acceleration (向心加速度): acceleration that only changes the direction of particle’s velocity.