Motion

• What is speed defined as?

  How fast you're going without direction
• What does displacement measure?

  The distance and direction from start
• What is the typical speed of walking?

  1.5 m/s
• What is the typical speed of cycling?

  6 m/s
• What is the typical speed of a plane?

  250 m/s
• What is the typical speed of sound?

  330 m/s
• What factors can affect a person's walking, running, and cycling speed?

  Type of ground and distance traveled
• What is velocity?

  Speed in a certain direction
• What is acceleration?

  The change in velocity over time
• What is the acceleration due to gravity near Earth's surface?

  Approximately 9.8 m/s²
• What does deceleration indicate?

  Negative acceleration, slowing down
• What is the relationship between speed, velocity, and acceleration?

  • Speed: scalar quantity, no direction
  • Velocity: vector quantity, includes direction
  • Acceleration: change in velocity over time
• What are the typical speeds for different activities?

  • Walking: 1.5 m/s
  • Cycling: 6 m/s
  • Plane: 250 m/s
  • Sound: 330 m/s
• What is the effect of acceleration on an object in circular motion?

  • Constant speed
  • Changing direction
  • Changing velocity