Speed, velocity & acceleration

HideShow resource information
  • Created by: Phelps
  • Created on: 18-12-13 17:06
View mindmap
  • Speed, velocity & acceleration
    • Speed
      • Scalar quantity (size only)
      • v = Distance moved / Time taken
      • SI unit = m/s
    • Velocity
      • Vector quantity (size and direction)
    • Distance-Time Graph
      • Gradient of graph increases with speed
    • Speed-Time Graph
      • Area under graph = distance travelled
    • Acceleration
      • a = change in velocity / Time
      • SI unit = m/s2
      • All objects near the earth fall with a constant acceleration = 10m/s
        • Acceleration of free fall is NOT dependent on mass
      • rate of change in velocity per unit time
      • Acceleration is constant if a constant resultant force is acting
        • a = v-u / t
      • Acceleration is NOT constant if a varying resultant force is acting
        • e.g. objects falling in air; car accelerating (air resistance increases with velocity)
    • Motion of bodies falling in an uniform gravitational field
      • In a Vacuum
        • Velocity
        • Acceleration
      • With Air Resistance
        • Velocity
        • Acceleration

Comments

No comments have yet been made

Similar Physics resources:

See all Physics resources »See all Forces and Motion resources »