# 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 