science-16/7/21

contact forces

friction

reaction

tension

air resistance

non-contact forces

magnetic

electrostatic

gravitational

resultant force

When two or more forces act on an object, the resultant force can be found by adding up the individual forces.

Forces_and_resultant_forces

vector diagrams

Vector diagrams are used to break down a single force into two forces acting at right angles to each other.

scalar and vector power

Scalars are quantities that are fully described by a magnitude alone. Vectors are quantities that are fully described by both a magnitude and a direction.

work done

Work is done when energy is transferred from one store to another.

speed and velocity

Speed is the time rate at which an object is moving along a path, while velocity is the rate and direction of an object's movement.

distance time graphs and velocity time graphs- velocity-time-and-distance-time-graphs-64b8f6c6ab1f9f7942c42de03c326ac5-oq1cipcp5zqm32bc86opmo3cwua4ka0sp8uwocri0w