P9 Forces-2
Distance and displacement
Speed
Velocity
The distance–time relationship
Acceleration
Newton's First Law
Newton's Second Law
Required practical activity 19: investigate the effect of varying the force on the acceleration of an object of constant mass, and the effect of varying the mass of an object on the acceleration produced by a constant force
Newton's Third Law
Stopping distance
Reaction time
Factors affecting braking distance 1
Factors affecting braking distance 2
Momentum is a property of moving objects
Conservation of momentum
what is the difference between distance and displacement?
is each scalar or vector?
is speed a scalar or vector quantity and why?
what factors affect the speed at which a person can walk, run or cycle?
what is the typical speed for-
walking
running
cycling
what is the speed of sound in air?
what is the equation for calculating speed and name the units?
is velocity a scalar or vector quantity and why?
explain qualitatively, with examples, that motion in a circle involves constant speed but changing velocity
distance-time graphs-where is the person stationary? 
where is the speed fastest and why?
if an object was accelerating on the distance-time graph, how would you calculate the speed at any point on the line?
how do you calculate acceleration and name the units?
what is meant by deceleration?
how would you calculate acceleration from a velocity-time graph?
how would you use velocity–time graphs to
determine distance travelled (or displacement)?
what is the acceleration of any object falling freely under gravity near to the Earth's surface?
what is terminal velocity?
explain using forces why the parachutist reaches terminal velocity why opening the parachute reduces the terminal velocity
what is Newton's First Law?
what is inertia?
what is Newton's Second Law?
how do you calculate resultant force and name the units?
what symbol means 'approximately'?
what is Newton's Third Law and Newton’s Third Law give examples of equilibrium situations?
what is stopping distance?
what is the range of reactions times from person to person?
what factors affect reaction times?
describe how you can measure human reaction times and recall typical results?
what factors affect braking distance?
what are the implications for safety?
estimate how the distance required for road vehicles to stop in an
emergency varies over a range of typical speeds
why is it dangerous to brake very quickly?
estimate the forces involved in the deceleration of road
vehicles in typical situations on a public road
how do you calculate momentum and name the units?
what is conservation of momentum?
describe and explain examples of momentum in an event, such as a collision