Motion Flashcards
Displacement
The distance travelled in a straight line, it has both a direction and a size, therefore a vector.
Scalar
A scalar quantity that has magnitude only.
Vector
A vector quantity has magnitude and acts in a particular direction
Distance
Refers to how far an object moves - it does not include an objects direction
Velocity
The speed in a PARTICULAR direction, therefore a vector. A change in velocity can be a change in speed or direction.
Acceleration
Acceleration (m/s^2) = change of velocity / time taken, the rate of change of velocity
Average speed
Average speed = total distance (m) / total time (s)
Distance formula?
Distance travelled (m) = speed (m/s) x time (s)
mass formula
2 x KE/speed^2
kinetic energy
1/2 x mass x speed^2
speed
speed = distance/time
gradient =?
speed
time
time = final velocity - initial velocity / acceleration
final velocity
final velocity = initial velocity + (acceleration x time)
initial velocity
initial velocity = final velocity - (acceleration x time)
Average speed
Average speed = total distance / total time
is speed scalar or vector
Scalar
Is velocity scalar or vector
vector
difference between speed and velocity
Speed tells us the rate at which an object is moving. Velocity tells us the rate at which an object is moving in a specific direction.
