Vectors And Scalers Flashcards
What is a scaler quantity
Quantity that only has magnitude and no direction. They are measured by their size
Vector quantity
Quantities that have both magnitude and direction.
Examples of scalar quantity
Mass
Volume
Energy
Time
Distance
Temperature
Charge
Speed
Examples of scalar quantity
Mass
Volume
Energy
Time
Distance
Temperature
Charge
Speed
Example of vector quantities
Distance (direction and mass)
Velocity (speed and direction)
Acceleration (rate of velocity change)
Weight
Friction
Force
Mass
Measure of how much matter an object has in kg
Volume
Measure of how much space an object has in meters cubed
Displacement
Change in position. How much an object’s position has changed and the direction of motion required to locate the new position of the object. (km or m)
Distance
Is the total path length traveled (km)
Difference between distance and displacement
Distance is a scalar quantity that measures the total length of path traveled
While displacement is a vector quantity that measures the change of position and the direction of the motion to the new position of the object
Speed
Scalar quantity that measures distance covered per unit time in meters per second to the power of negative 1
Energy
Ability to do work (J)
Time
How long it takes for an event to happen (s)
Position
Location of an object relative to a fixed reference point
Force
Push or pull
Frictional force
Force that opposes motion such as car brakes applying friction to stop the vehicle
Weight
For due to gravity measured in newtons
Electric force
Force that acts on charged objects due to their charges such as repulsion or attraction force depending on the negative or positive charge and if they are alike
Velocity
Vector quantity that measures the rate of displacement in m/s
When we describe direction using an angle
We name the angle to either left or right of it’s original direction
When we describe direction of an object thrown at an angle in a direction
We describe it’s initial direction of motion in terms of the angle through which it was released like 45 degrees to the ground.
Using compass points to describe direction
If you say east of north then you go east of the north part
North of East, you’d go north but to the east side where tour angle resides.
Bearing
Degrees through which you turn in a clockwise direction from the north. A negative would suggest anticlockwise to north
