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Gravity and Free Fall: Understanding Acceleration, Terminal Velocity, and Projectile Motion

Learn about the concepts of acceleration, terminal velocity, and projectile motion in the context of gravity and free fall. Explore how these factors affect the behavior of falling objects and projectiles.

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Gravity and Free Fall: Understanding Acceleration, Terminal Velocity, and Projectile Motion

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  1. Next stop, Earth Heavy, man “I shot an arrow into the air…” fallout Spaced Out 1pt 1 pt 1 pt 1pt 1 pt 2 pt 2 pt 2pt 2pt 2 pt 3 pt 3 pt 3 pt 3 pt 3 pt 4 pt 4 pt 4pt 4 pt 4pt 5pt 5 pt 5 pt 5 pt 5 pt

  2. It’s the rate at which objects are accelerated due to gravity on Earth.

  3. 9.8 m/s2 1 PT

  4. Its what this graph is showing for a falling object. V (m/s) t (s)

  5. The object’s rate of acceleration slows to zero, meaning the object has reached terminal velocity 2 PT

  6. The speed of an object in free fall after 3 seconds.

  7. 29.4 m/s 3 PT

  8. The distance an object will free fall after 4.2 seconds.

  9. 86.4 m. 4 PT

  10. The time it takes for an object to free fall 145 m.

  11. 5.4 s. 5 PT

  12. The only force acting on an object in free fall.

  13. Gravity (or weight). 1 PT

  14. What a falling object will never reach on the Moon.

  15. Terminal velocity 2 PT

  16. It increases with speed as an object falls through the air.

  17. Air resistance 3 PT

  18. This decreases as an object falls through the air and approaches terminal velocity.

  19. Net Force (and acceleration) 4 PT

  20. Terminal velocity occurs when these two forces are balanced.

  21. Weight (or force of gravity) and air resistance. 5 PT

  22. All projectiles are under the influence of this.

  23. gravity 1 PT

  24. It’s the two dimensions of motion associated with a projectile with a curved path

  25. Horizontal velocity and vertical acceleration. 2 PT

  26. It’s the direction that a projectile is accelerating.

  27. Vertical 3 PT

  28. It’s how far a projectile travels horizontally after 4 seconds of traveling 23 m/s.

  29. The projectile travels 23 m horizontally each second, so it is 92 m. 4 PT

  30. It’s how much speed a free falling object on earth gains each second it falls.

  31. The object gains 9.8 m/s of vertical speed each second it falls. 5 PT

  32. It’s the net force of any object that is falling at its maximum falling speed

  33. Zero net force 1 PT

  34. The two factors that the air resistance of a falling object depends on.

  35. Speed and frontal area (exposed surface area) 2 PT

  36. One way that a falling object’s terminal velocity can decrease.

  37. Increase in frontal area exposed to air. 3 PT

  38. The shape of a curved projectile’s path

  39. parabola 4 PT

  40. The path of a projectile

  41. trajectory 5 PT

  42. The result of dropping a feather and a hammer on the moon or in a vacuum at the same time from the same height.

  43. The feather and hammer both land at the same time 1 PT

  44. It is also called the weight of an object

  45. Gravitational force 2 PT

  46. It’s 1/6th less on the Moon than on the Earth

  47. Gravity or acceleration due to gravity 3 PT

  48. It’s absence on the Moon allows all objects to fall the same

  49. Air resistance 4 PT

  50. It is why a larger, heavier object falls faster on the Earth than a smaller, lighter object with the same frontal area.

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