Motion

Know how to interpret displacement / velocity and acceleration time graphs

Use the area under a velocity time graph to determine displacement

Use the gradient of a velocity time graph to determine acceleration

Use the area under an acceleration time graph to determine velocity

Use the gradient of a displacement time graph to determine velocity

Know the SI system of units and convert any quantities encountered into Newtons, Metres, Seconds, Kilograms or Joules

Understand the difference between acceleration and velocity

Determine the NET force on an object by vector addition

Use the NET force, mass and acceleration to determine the size of other forces acting on an object

Be able to utilise Newton’s First and Second Law to solve problems involving constant acceleration with a number of forces acting

Determine the weight force on an object

Use the Constant Acceleration (SUVAT) formulas to solve problems to find x, u, v a or t

Calculate the size of vector components of a force

Calculate the NET force on an object when at one of the forces is acting at an oblique angle to the direction of motion

Calculate the value of an unknown friction force when other forces are stated

Solve Inclined Plane Problems when the object on the plane is

• at rest

• moving with constant velocity

• experiencing uniform acceleration

• experiencing friction

Solve Two Body problems where both objects are linked and a Tension Force is acting between the bodies

Use your understanding of Newton’s Third Law to identify and justify Action - Reaction pairs of forces.

Be able to differentiate between Action - Reaction force pairs and other forces

Calculate the momentum of an object

Understand and use the Impulse = change in Momentum relationship to determine average collision forces when the collision time is provided

Impulse = area under a force-time graph

Understand the definition of Gravitational Potential and Kinetic Energy and apply their formulas to solve problems.

Know and apply the relationship between these two forms of energy in a range of systems such as pendulums and roller coasters

Understand Torque = Fr

Apply the concepts of Translational and Rotational Equilibrium to solve problems involving support forces

Know how to calculate total work done: W = Fx

Work = area under a force- displacement graph

Determine if work is performed against

• Gravity

• Friction

Understand and apply the concept of Conservation of Momentum

Use your understanding to solve problems involving collisions where the either the velocity of the objects before or after the collision is unknown

Describe the concept of Elastic Potential Energy (E.P.E) and understand its relationship with Kinetic Energy and Work in situations such as a ‘Pinball Machine” or Archery

Apply Hookes Law ( F = -kx) work out the force acting on an object connected to a spring when the spring is compressed / extended

Understand the significance of the ‘Spring Constant’

Use the area under a Force-extension graphs to calculate the E.P.E stored in a spring. (EPE = 0.5kx²)