KS5 Kinematics

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Kinematics - Objectives

Content

• Rectilinear motion

• Non-linear motion

Learning Outcomes

Candidates should be able to:

  • define and calculate displacement, speed, velocity and acceleration (calculations may inculde average and instantaneous speeds and velocities).
  • use graphical methods to represent distance travelled, displacement, speed, velocity and acceleration for uniform and non-uniform acceleration.
     
  • find the distance travelled by calculating the area under a speed-time graph for uniform and non-uniform acceleration.
     
  • use the slope of a displacement-time graph to find velocity, and of a distance-time graph to find speed for uniform and non-uniform acceleration.
  • use the slope of a velocity-time graph to find acceleration for uniform and non-uniform acceleration.
  • derive, from the definitions of velocity and of acceleration, equations which represent uniformly accelerated motion in a straight line. Recall of the derivation is not required
  • use equations which represent uniformly accelerated motion in a straight line, including falling in a uniform gravitational field without air resistance.
  • explain motion due to a uniform velocity in one direction and a uniform acceleration in a perpendicular direction.
  • describe qualitatively the motion of bodies falling in a uniform gravitational field with fluid resistance.
  • deal qualitatively with friction, drag and lift forces.
  • understand that fluid resitance increases with speed.
  • understand and explain the concept of terminal speed and its effect on the trajectory of a projectile and the factors that affect the maximum speed of a vehicle.
  • REQUIRED PRACTICAL - determination of g by a freefall method

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