Preview

2_25A MUHSA Video - The Law of Falling Bodies

Good Essays
Open Document
Open Document
708 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
2_25A MUHSA Video - The Law of Falling Bodies
2.25A MUHSA Video
"The Law of Falling Bodies"
The answers are in red
Questions:
1. The video introduces one of the "deepest mysteries in all of physics." The deepest mystery in all of physics is that in a vacuum all bodies fall with the same constant acceleration.
2. In the next sequence, we see a person diving from a board and a leaf falling from a tree. It is stated that the speed of a falling body increases as it falls. If the statement concerning falling bodies is true, then why does the leaf seem to fall so much more slowly than the diver? The leaf seems to fall much more slowly because it has less mass then the diver which causes the leaf to have smaller gravitational pull on it. The leaf also has a larger surface area then the diver which causes air resistance as it falls.
3. Watch the sequence showing the falling penny and feather in a vacuum. Mark the following statements true (T) or false (F).
A. Both objects fall with the same constant speed. True
B. Both objects fall with the same constant acceleration. True
C. In a vacuum, the force of gravity is "turned off." False
4. Watch the sequence showing David Scott, Apollo 15 astronaut, on the moon.
A. Describe the motion of the hammer and feather when David Scott dropped them on the moon. When the hammer and feather fell they both fell at the same speed and same acceleration. In the end both landed the same time, but both fell slowly.
B. Would the hammer and feather fall differently if David Scott did the same experiment on earth? Explain. If David Scott did the same experiment on Earth, the hammer and the feather would fall at different times, acceleration, and constant speeds. In the end the hammer would land first because of its larger mass that cuts through the air resistance easier.
C. Hold a shoe about head high. Drop the shoe just as David Scott drops the hammer and feather. Which hits the ground first (your shoe or the items dropped on the moon)? Explain your answer. My shoe hit the

You May Also Find These Documents Helpful

  • Good Essays

    During the object’s fall air resistance acts as an ‘upward’ force that works against the weight force – produced by the object’s mass. As surface area is the selected independent variable, weight will remain constant, meaning that the ‘downward’ force will also remain consistent. That said, the changing surface area will invoke a changing ‘upward’ force, thus implying that the resultant force will also change; making for a measurable relationship between surface area and speed of travel.…

    • 506 Words
    • 2 Pages
    Good Essays
  • Good Essays

    What forces were acting on the objects dropped in the air? What force was acting on the objects dropped in the vacuum? The force that was acting on the objects that dropped in the air was friction. The force that was acting on the object when it dropped in the vacuum was friction also…

    • 415 Words
    • 2 Pages
    Good Essays
  • Good Essays

    1122

    • 572 Words
    • 3 Pages

    What forces were acting on the objects dropped in the air? What force was acting on the objects dropped in the vacuum? (the force that was acting on the objects that dropped in the air was friction. The force that was acting on the object when it dropped in the vacuum was friction also.)…

    • 572 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    5. On a distant planet, a free falling object has an acceleration of 20m/s2. What velocity will a body dropped from rest on this planet acquire in 1.5s?…

    • 287 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Our Solar System

    • 460 Words
    • 2 Pages

    Objective: The objective of this lab assignment is to determine if objects with different masses fall at the same rate or varying rates in the presence of air and in a vacuum.…

    • 460 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Me Like

    • 701 Words
    • 3 Pages

    3. We will now use energy considerations to find the speed of a falling object at impact. Artiom is on the roof replacing some shingles when his 0.55 kg hammer slips out of his hands. The hammer falls 3.67 m to the ground. Neglecting air…

    • 701 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Normal Force

    • 802 Words
    • 4 Pages

    If you were to drop a rock from a tall building, assuming that it had not yet hit the ground, and neglecting air resistance, after 5.5 s;…

    • 802 Words
    • 4 Pages
    Good Essays
  • Powerful Essays

    When an object falls, many forces are acted upon it: gravity, friction, air resistance and, if in the water, up thrust. When an object starts to fall, gravity over powers air resistance, however, as an object starts to reach terminal velocity (its maximum speed) the opposite forces start to even out until they are equal. Some people believe that if the forces are balanced then the object has stopped moving, meanwhile they could also just be moving at a constant speed (its terminal velocity). All free-falling objects accelerate at the same speed no matter what their mass is (9.8m/s²).…

    • 6862 Words
    • 28 Pages
    Powerful Essays
  • Satisfactory Essays

    3. (A) Acceleration would increase. The mass of one side is gerater than the mass of the other, meaning the heaver side has a greater weight force (mg) acting upon it equating to a greater accelearation.…

    • 249 Words
    • 1 Page
    Satisfactory Essays
  • Satisfactory Essays

    Data from the Pasco (Motion sensor) part ObjectAcceleration (slope) errorFace Ball9.850.4Metal Ball9.592.2Big Duck9.890.8 Sketch position vs. time graph and velocity vs. time graph (generalized) that you saw during each run in your lab notebook. Pay attention to the type of relationship each show. Questions What did you determine the acceleration of gravity to be with your ball in the first part of the lab 9.79m/s2 What type of curve (relationship) is shown in the position vs. time graphs in the second part of the lab Exponential What type of curve (relationship) is shown in the velocity vs. time graphs in the second part of the lab Linear Does mass have an effect on the acceleration of an object due to gravity No Why/Why not Acceleration due to gravity affects all objects equally when there is no air resistance present because it is a constant force that affects everything. Why are your results better in the second…

    • 665 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    An object that is falling through the atmosphere is subjected to two external forces. The first force is the gravitational force, expressed as the weight of the object. The weight equation which is weight (W) = mass (M) x gravitational acceleration (A) which is 9.8 meters per square second on the surface of the earth. The gravitational acceleration decreases with the square of the distance from the center of the earth. If the object were falling in a vacuum, this would be the only force acting on the object. But in the atmosphere, the motion of a falling object is opposed by the air resistance or drag. The drag equation tells us that drag is equal to a coefficient times one half the air density (R) times the velocity (V) squared times a reference area on which the drag coefficient is based.…

    • 1559 Words
    • 7 Pages
    Good Essays
  • Good Essays

    Newton’s laws of motion are the basis for this experiment. Newton’s first law of motion states that a body in motion will remain in motion unless acted upon by an external force. Newton’s second law of motion states that the rate of momentum of a body is dependent on the product of its mass and acceleration. Where rate of change of momentum is given by…

    • 766 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Cavendish's Lab Questions

    • 521 Words
    • 3 Pages

    One of the oldest questions in history is why and how fast do things fall to the Earth? This was not far from Henry Cavendish’s goal. In 1798 Cavendish sought to find the density of the Earth which in turn can be used to calculate the weight of the world. His experiment however required him to calculate an undefined variable in Newton’s law of universal gravitation known as G or the gravitational constant. Cavendish through his experiment discovered that the Earth’s gravitational constant was 9.8 m/s^2. Cavendish’s experiment made use of two lead spheres connected by a horizontal wooden rod suspended by a thin metal string. His final calculation of Earth’s density was 5.48 times that of water which is only .04 off of today’s accepted value of 5.52 times the density of water.…

    • 521 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    Free Fall Lab Example

    • 614 Words
    • 3 Pages

    If the gravity of the moon is more then the object will fall slower in the moon…

    • 614 Words
    • 3 Pages
    Satisfactory Essays
  • Satisfactory Essays

    My group and I discovered that the object accelerated faster when the object’s height was increased.…

    • 505 Words
    • 3 Pages
    Satisfactory Essays