motion Flashcards
what is a scalar
a quantity that can be described by just a size and unit
what is a vector
a quantity that is fully described with a size, unit and direction
what is acceleration
the rate of change of velocity
what is velocity
the rate of change of displacement
what is speed
the rate of change of distance
how do you find the acceleration from a velocity - time graph
the gradient
how do you find the displacement from a velocity - time graph
the area under the graph
when an object has constant velocity the acceleration is ….
zero, which means the forces must be balanced
what does unbalanced force mean?
forces that cause an object to accelerate
draw a velocity time graph where there is constant velocity traveling in a straight line
_________
draw a velocity time graph where an object is traveling in a straight line from rest.
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what is a balanced force
equivalent to having no force acting on an object; the forces cancel each other out
