P8 Flashcards
Displacement
Distance in a given direction
Driving force
A force of a vehicle that makes it move
Free body force diagram
A diagram that shoes the forces acting on an object without any other objects or forces shown
Fricttion
The force opposing the relative motion of two solid surfaces in contact
Magnitude
The size or amount of a pysical quantity
Newtons first law of motion
If the resultant force on an object is zero the object stays at rest if it is stationary or it keeps moving with the same speed in the same direction
Newtons thrid law of motion
When two objects interact with each other they exert equal and opposite forces on each other
Parralelogram of forces
A geometric method used to find the resultsnt of two forces that do not act along the same line
Resultsnt force
A single force that has the same effect as all the fprces acting on the object
Scalar
A physical quantity such as mass ir energy that has magnitude only
Vector
The same as scalar but with a derection
