Distance, displacement, speed and velocity

• What is a scalar?

  Something that only has magnitude
• What are 3 examples of scalars?

  Speed, distance and mass (time, volume, density, temperature, energy)
• What is a vector?

  Something that contains both magnitude and direction
• What are 3 examples of a vector quantity?

  Velocity, displacement and weight (friction, force, momentum, acceleration)
• What is speed meaning?

  How fast an object can go
• What is the equation of speed?

  Speed= distance/time
• speed?

  $S =$$d/t$
• What is velocity meaning?

  The speed and direction of an object
• Two objects can have different velocities due to the direction, it can be a negative velocity and a positive velocity.
• What is velocity equation?

  Velocity = displacement / time
• What does it mean if an object travels back to its initial space?

  The displacement is 0m but the distance can be a magnitude
• How do you calculate average speed / average velocity?

  Total displacement or total distance / total time
• What is average walking speed?

  1.5 m/s
• What is average running speed?

  3 m/s
• What is average cycling speed?

  6 m/s
• What is average car speed?

  25 m/s
• What is average train speed?

  55 m/s
• What is average aeroplane speed?

  250 m/s
• What is average sound waves in Air?

  330 m/s
• What factors affect wind speed?

  Temperature, atmospheric pressure and obstacles (e.g buildings)