Cards (21)

  • Mechanics is a branch of physics that studies the relationship among matter, motion, and force.
  • Centripetal acceleration is the acceleration of UCM, directed towards the center of the circle.
  • Kinematics is a branch of mechanics that deals with the description of motion in terms of distance, displacement, speed, velocity, and acceleration.
  • Distance is a scalar; the total length covered by a moving object independent of the direction of the motion.
  • Displacement is a vector; a distance measured in a straight line and in a specified direction; a measure of change in position; shortest distance covered.
  • Speed is a scalar; the distance moved per unit time.
  • Velocity is a vector; rate of change of displacement.
  • Acceleration is a vector; rate of change of velocity with time.
  • An object accelerates when there is a change in velocity and/or direction.
  • If a projectile starts and ends its motion at the same height, then the time it takes to go up is equal to the time it takes to come down.
  • The vertical motion in Projectile Motion is constant acceleration, which means the acceleration due to gravity causes the objects to slow down as it goes up and speeds up as it goes down.
  • The vertical component of a projectile’s velocity is zero when at the peak of its trajectory.
  • The path of the projectile motion is parabolic.
  • Uniform Circular Motion is the motion of a particle moving in a circle with a constant speed, which is both linear speed and rotational speed.
  • Projectile Motion is the motion experienced by an object thrown near the Earth’s surface and moves along a curved path under the action of gravity only.
  • The horizontal and vertical motion in Projectile Motion are independent of each other.
  • Projectile Motion is composed of a horizontal motion with constant velocity, which means there is no force along the horizontal so there is no acceleration.
  • Free fall motion is when the object accelerates uniformly, the magnitude is 9.8 m/s^2, and the direction is downwards.
  • Uniformly Accelerated Rectilinear Motion (UARM) is an object moving with a constant acceleration with no change in direction (along a straight line).
  • Kinematics in Two Dimensions is the study of motion in two dimensions.
  • In free fall motion, 𝒗𝒇 = π’—π’Š + π’ˆπ’•; πœŸπ’š = 1/2 (𝒗𝒇 βˆ’ π’—π’Š)t; π’—π’‡πŸ = π’—π’ŠπŸ + 𝟐gπœŸπ’š; πœŸπ’š = π’—π’Šπ’• + 𝟏/πŸπ’ˆ 𝒕2, where 𝒗𝒇 = final position, π’—π’Š = initial position, 𝒕 = time, πœŸπ’š = displacement, 𝒂 = initial velocity, π’ˆ = final velocity.