Kinematics Definitions Flashcards
1
Q
Physical Quantity
A
A property of an object that can be measured with a measuring instrument.
2
Q
Scalar Quantity
A
A physical quantity that has magnitude only.
3
Q
Vector Quantity
A
A physical quantity that has both magnitude and direction.
4
Q
Position (x)
A
An object’s location relative to a reference point.
5
Q
Frame of Reference
A
A reference point combined with a set of directions.
6
Q
Rectilinear Motion
A
Motion along a straight line.
7
Q
Distance (d)
A
The length of path travelled.
scalar
8
Q
Displacement (∆x)
A
A change in position.
vector
9
Q
Speed (v)
A
The rate of change of distance.
scalar
10
Q
Velocity (v)
A
the rate of change of position
vector
11
Q
Instantaneous velocity
A
The velocity of an object at a precise moment.
12
Q
Acceleration
A
The rate of change of velocity.
