1.1 The forces acting on an object can change
how it moves
1.2 If the forces on one side of an object are bigger than the
other side then the resultant force is towards the smaller
side because that is the direction of the force.
1.3
1.3.1 You can see that the resultant force is towards the
smaller force.
1.4 If the resultant force is zero it means the
object may be stationary or at a constant
speed.
2 Motion
2.1 The accelration of an object can be
calculated if you know the mass and
resulting force acting on it.
2.2 The equation A = F / M
2.2.1 F is the resulting force in newtons N
2.2.2 A is the acceleration in M/S squared.
2.2.3 M is the mass of the object in KG
3 Forces and Energy
3.1 Work
3.1.1 Work is done when a force causes an object to
move through a distance.
3.1.2 The equation: W = F x D
3.1.2.1 W is the work done in joules.
3.1.2.2 F is the force acting on the object in N
3.1.2.3 D is the distance moved by the
object while the force is acting.
4 Forces and Braking
4.1 Thinking Distance
4.1.1 Thinking distance is the distance
traveled by the driver before
reaction.
4.1.2 The faster the vehicle, the further it will travel.
4.2 Braking Distance
4.2.1 Braking distance is the distance traveled
by the vehicle when the brakes are applied.
4.2.2 The faster the vehicle is
traveling the bigger
braking distance.
4.3 Stopping Distance
4.3.1 The stopping distance is the distance
covered by the vehicle altogether.
4.3.2 The equation is Braking distance + Thinking distance.
5 Acceleration and Velocity.
5.1 Acceleration is the rate of change in velocity
(speed in a straight line).