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part 1 — matching (write the correct letter for each definition.) a. di…

Question

part 1 — matching (write the correct letter for each definition.)
a. distance
b. displacement
c. speed
d. velocity
e. acceleration
f. scalar
g. vector
h. kinematics
i. motion
j. reference point
k. constant speed
l. stationary

  1. ____ not changing over time.
  2. ____ objects that stay in place; used to describe the motion of an object.
  3. ____ the rate at which velocity changes over time.
  4. ____ a physical quantity that has both magnitude (size/amt) and direction.
  5. ____ the change in position of an object.
  6. ____ a branch of physics that describes motion of objects.
  7. ____ measures the path taken by an object. represents the whole path traveled.
  8. ____ an object’s change in position relative to a reference point.
  9. ____ when an object covers equal distances in equal amounts of time.
  10. ____ a physical quantity of an object that describes its magnitude (numerical value) ex: mass
  11. ____ the distance traveled divided by the time interval during which the motion occurred.
  12. ____ the speed of an object in a particular direction.

Explanation:

Brief Explanations
  1. "Not changing over time" matches "Constant speed" (K) as constant speed means speed doesn't change with time.
  2. "Objects that stay in place; used to describe the motion of an object" is a "Reference point" (J)? Wait, no, "stationary" (L) is objects that stay in place. Wait, the original answer had 2 as J? Wait, no, let's re - check:
  • 1. "Not changing over time" - Constant speed (K) is speed not changing, but if it's about a quantity not changing, maybe "Constant speed" (K) is correct. But the original answer had 1 as L? Wait, the user's original work has some markings, but let's go by definitions:
  • 1. "Not changing over time" - "Constant speed" (K) is when speed is constant (not changing over time). But maybe the intended answer for 1 is K? Wait, the user's original marking for 1 is L (stationary)? No, "stationary" means not moving, not "not changing over time" in general. Maybe a mistake. But let's go with the standard definitions:
  • 1. "Not changing over time" - Constant speed (K) as speed is constant (not changing with time). But the user's original has 1 as L. Maybe the question was mis - phrased. Alternatively, "stationary" is an object not moving, but "not changing over time" could be about a quantity. Anyway, let's proceed with the standard:
  • 1. "Not changing over time" - Constant speed (K) is speed that doesn't change over time. But if it's about an object's state, "stationary" (L) is an object not moving. Maybe the question meant an object's state. So "stationary" (L) is an object that is not changing its position over time. So 1: L (stationary) as an object that is stationary is not changing (its position) over time.
  • 2. "Objects that stay in place; used to describe the motion of an object" - Reference point (J). A reference point is an object that is stationary (stays in place) used to describe the motion of another object.
  • 3. "The rate at which velocity changes over time" - Acceleration (E). By definition, acceleration \(a=\frac{\Delta v}{\Delta t}\), the rate of change of velocity.
  • 4. "A physical quantity that has both magnitude (size/amt) and direction" - Vector (G). Scalars have only magnitude, vectors have magnitude and direction.
  • 5. "The change in position of an object" - Displacement (B). Displacement is the change in position (final position - initial position), it's a vector.
  • 6. "A branch of Physics that describes motion of objects" - Kinematics (H). Kinematics is the study of motion (position, velocity, acceleration) without considering forces.
  • 7. "Measures the path taken by an object. Represents the whole path traveled" - Distance (A). Distance is a scalar that measures the total path length.
  • 8. "An object’s change in position relative to a reference point" - Displacement (B)? Wait, no, displacement is change in position relative to a reference point. But the user's original has 8 as B. Wait, displacement is the change in position (final - initial) relative to a reference point. Distance is the path length. So 8: Displacement (B).
  • 9. "When an object covers equal distances in equal amounts of time" - Constant speed (K). Constant speed means that the distance covered per unit time is constant, so equal distances in equal times.
  • 10. "A physical quantity of an object that describes its magnitude (numerical value) Ex: mass" - Scalar (F). Scalars have only magnitude (like mass, speed (wait, speed is a scalar, velocity is a vector)). So 10: Scalar (F).
  • 11. "The distance traveled divided by the time inte…

Answer:

  1. L. stationary
  2. J. Reference point
  3. E. Acceleration
  4. G. Vector
  5. B. Displacement
  6. H. Kinematics
  7. A. Distance
  8. B. Displacement
  9. K. Constant speed
  10. F. Scalar
  11. C. Speed
  12. D. Velocity