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)
