1.2.1 Differentiating between scalar and vector quantities

• What does temperature measure in scalar quantities?

  How hot or cold
• What is the scalar quantity for duration?

  Time
• What are vector quantities?

  Measurements with magnitude and direction
• What are the characteristics of scalar quantities?

  • Have magnitude
  • Do not have direction
  • Examples include:
  • Mass
  • Temperature
  • Time
• What defines a scalar quantity?

  It has only magnitude, no direction
• What does the direction of a vector quantity indicate?


  Where the quantity is applied
• How is time defined as a scalar quantity?

  Duration (e.g., 30 seconds)
• Why is force considered a vector quantity?

  It has both magnitude and direction
• How is mass defined as a scalar quantity?

  Amount of substance (e.g., 10 kg)
• In the context of vector quantities, what does magnitude refer to?

  The size of the measurement
• What does mass measure in a scalar quantity?

  How much matter an object contains
• What does velocity describe?

  How fast and which way you're moving
• What does speed indicate in scalar quantities?

  How fast an object is moving
• What does the magnitude of a force represent?

  How strongly you push or pull
• What does time measure in scalar quantities?

  How long something lasts
• In which directions can acceleration act?

  Right, Left, etc.
• What does temperature indicate in scalar quantities?

  How hot or cold something is
• In which directions can force act?

  Upwards, Downwards, etc.
• What is direction in physics?

  Where a quantity is pointing or heading
• How is temperature defined as a scalar quantity?

  How hot or cold (e.g., 25°C)
• What does displacement measure?

  How far you've moved from the starting point
• In which directions can displacement occur?


  South, North, etc.
• What is the coordinate of point AB?

  (-3,2)
• How can a vector be represented on a coordinate plane?

  • A vector can be represented by an arrow with a starting point (tail) and an ending point (head)
  • The coordinates of the tail and head define the vector
  • The length of the vector is the distance between the tail and head
  • The direction of the vector is the angle the arrow makes with the positive x-axis
• What is the direction of a force of 50 N pushing upward?

  Upward
• If a force of 50 N is pushing upward, what is its magnitude?

  50 N
• What is the difference between vector and scalar quantities?

  • Vector Quantities:
  • Have magnitude
  • Have direction
  • Example: Force

  
  

  • Scalar Quantities:
  • Have magnitude
  • No direction
  • Example: Mass
• What does acceleration indicate?

  How quickly your speed is changing
• How can vectors be represented in a coordinate system?

  By an arrow
• How does magnitude differ from direction in terms of application?

  Magnitude applies to both scalars and vectors
• What is the coordinate of point A?

  (-3,2)
• How is the magnitude of vector $\overrightarrow{AB}$ determined?


  By the distance between points A and B
• What does the direction of the arrow in a vector indicate?

  The direction of the vector
• What points are used to determine the vector $\overrightarrow{AB}$?


  Points A(-3,2) and B(2,1)
• In which direction does vector $\overrightarrow{AB}$ point?


  From point A to point B
• What is the coordinate of point B?

  (2,1)
• What are the key differences between scalar and vector quantities?

  • Scalar: Only magnitude (size)
  • Examples: Mass, temperature, volume
  • Vector: Both magnitude and direction
  • Examples: Velocity, force
• What is magnitude in physics?

  The size or amount of a quantity
• What is the difference between the properties of scalar and vector quantities?

  Scalar quantities:

  • Have only magnitude (size)
  • No direction

  
  

  Vector quantities:

  • Have both magnitude (size) and direction
  • Can be added or subtracted using vector operations
• What is the difference between a scalar quantity and a vector quantity?

  A scalar quantity has only magnitude, while a vector quantity has both magnitude and direction.