physics - motion

Question 1

scalar - measurements

Answer 1

• physical quantities described by magnitude (size) only, such as mass, time or speed
• do not depend on direction; they only tell “how much”
• fully defined by a numerical value and unit

Question 2

vector - measurements

Answer 2

• require both magnitude and direction to be fully defined, such as velocity, force or displacement
• mathematical or physical quantity possessing both magnitude (size or length) and direction