physics

Subdecks (1)

Cards (23)

  • Mass
    The amount of matter in an object
  • Weight
    The gravitational force on an object
  • Weight is a gravitational force
  • Mass and weight are distinct concepts
  • Comparing weights (and hence masses) using a balance
    1. Place objects on balance
    2. Compare weights
  • Mass
    • Property that 'resists' change in motion
  • Gravitational field strength
    The force experienced by a mass due to gravitational attraction
  • Gravitational field strength (g) has two meanings:
  • Calculating acceleration of rocket
    Given: Mass = 500 kg, Upward force = 6000 N, Weight = 4900 N
    Resultant force = Upward force - Weight = 6000 - 4900 = 1100 N
    Acceleration = Resultant force / Mass = 1100 / 500 = 2.2 m/s^2