P8 Forces In Balance

Distance in a certain direction

Physical quantities that have size but no direction e.g speed

The size of a quantity eg 5 km

Physical quantities that have directions like acceleration

They can be represented by an arrow The direction shows the direction of the vector quantity The length of the arrow represents the magnitude of the vector quantity

A way to represent vectors if two forces act at right angles to each other on an object

Forces that occur when an object is supported by or strikes another object

If the two objectss do not have to touch to interact

When two objects interact with each other the exert equal and opposite forces on each other

A single force that has the same effect as all the forces acting on the object If the resultant force is zero then the forces acting on the object are balanced

If the forces acting on an object are balanced the resultant force on the object is zero and if the object is at rest its stationary and if its moving it keeps moving with the same speed and in the same direction

A diagram that shows the magnitude and direction of all the forces acting on a single object Each force is represented by an arrow pointing in the direction of the force with the length representing the size of the force

The angle between two adjacent sides of a parallelogram that is the same of the angle berweent eh two forces with the resultant force being diagonal of the parallelogram from the origin

You replace it with two forces at right angles to each other

The resultant force on the object is zero The forces acting on the object have no overall turning effect