speed

• What is meant by speed?

  The distance traveled in a given time
• How do you calculate the speed of a moving object?

  Distance traveled divided by time taken
• What does distance tell us about an object's movement?

  How far an object moves without direction
• Why is distance considered a scalar quantity?

  It has magnitude but no direction
• What does displacement include that distance does not?

  The direction of the straight line movement
• Why is displacement classified as a vector quantity?

  It includes both magnitude and direction
• What does speed tell us about an object?

  The distance traveled in a given time
• Why is speed considered a scalar quantity?

  It does not involve direction
• What is the equation for speed?

  Speed = distance / time
• If a car travels 260 meters in 20 seconds, what is its speed?

  13 meters per second
• What is the normal walking speed?

  1.5 meters per second
• What is the typical speed of cycling?

  6 meters per second
• What is the speed of a car on a main road?

  13 meters per second
• What is the speed of a fast train in the UK?

  50 meters per second
• What is the cruising speed of an airplane?

  250 meters per second
• What is the typical speed of sound in air?

  330 meters per second
• How does temperature affect the speed of sound?

  Sound travels faster on warmer days
• Why is the speed of a moving object rarely constant?

  It changes during different points of a journey
• How do you calculate the distance traveled by an object at constant speed?

  Distance = speed × time
• If a car moves at 12 meters per second for 8 seconds, what distance does it travel?

  96 meters
• What are typical speeds for various activities?

  • Normal walking speed: 1.5 m/s
  • Running speed: 3 m/s
  • Cycling speed: 6 m/s
  • Car on main road: 13 m/s
  • Fast train in the UK: 50 m/s
  • Cruising airplane: 250 m/s
  • Speed of sound in air: 330 m/s
• What factors affect the speed of a moving object?

  • Age and fitness level of the person
  • Terrain (flat ground vs. uphill)
  • Distance traveled (fatigue over long distances)
• What is the importance of calculating average speed?

  • Simplifies calculations
  • Accounts for variations in speed during a journey