what are the two types of quantities?
vector and scalar
scalar quantities definition
measurements described only in terms of size
vector quantities defintion
measurements described in terms of size and direction
what are the types of scalar quantities?
mass, distance, speed
what are the types of vector?
weight, acceleration, displacement, velocity and momentum
what is the definition of mass?
quality of matter a body possesses
what is the unit for mass?
kilograms (kg)
what is the definition for distance?
path a body takes as it moves from the starting position to the finishing position
what is the unit of measure for distance?
meters (m)
what is the definition of speed?
measurement of a body’s movement per unit of time with no reference to direction
what is the unit of measure for speed?
meters per second (m/s)
what is the calculation for speed?
speed (m/s) = distance covered (m) / time taken (s)
what is the definition of weight?
gravitational force excreted on an object
what is the unit of measure for weight?
newtons (N)
what s the calculation for weight?
weight (N) = Mass (kg) x gravitational field strength (N/kg)
what is displacement?
shortest route in a straight line between the starting position and the finishing position
what is the unit of measure for displacement?
meters (m)
what is the definition for velocity?
rate of change of displacement
what is the unit of measure of velocity?
meters / second (m/s)
what is the equation for velocity?
displacement (m) / time taken (s)
what is the definition of acceleration?
rate of change in velocity
what is the unit of measure for acceleration?
meters per second squared (m/s^2)
what is the equation for acceleration?
change in velocity (m/s) / time (s)
what is the defintion of momentum?
product of the mass and velocity of an object
