Gravity lab level 91/10/2023 ![]() Some interesting things to note about the So gravity is one of the four fundamental forces of nature. These interactions are summarized in this ![]() Is the intensity of the light circle ever zero? Is it correct to say that gravity doesn’t exist between objects on opposite sides of the galaxy?Īs you continue with your study of physics, you'll learn that there are fourįundamental interactions in nature. If you moved too far away from the wall the circle of light probably became very difficult to see.Using your plot from question 2, sketch an approximate plot for light intensity vs. If the amount of light shining from the flashlight is constant, the intensity of light should decrease as the area it shines on gets larger.What kind of relationship does this indicate (i.e. Draw a line of best fit through your data points, and comment on the general shape of your plot.area for the light shining from the cup to the wall (plot the area data on the y‐axis). How did the area of the circle of light change as you moved farther away? How does this relate to the gravity field of a body?.How did the intensity (brightness) of the circle of light seem to changes as you increased the source distance?.Using the universal law of gravitation, show that the gravitational acceleration experienced by an object is independent of its mass.How does air resistance alter the way we perceive falling objects?.By what percentage is this acceleration different from that on the Earth's surface? Use the above equation to calculate the gravitational acceleration at an altitude of 100,000 meters above the Earth. The following expression for the acceleration due to gravity works well for objects near the Earth’s surface (G is the gravitational constant, M e is the mass of the Earth, and R e is the radius of the Earth):.Please include detailed descriptions of your experimental methods and observations.īased on your results from the experiments, please answer the following questions:Įxperiment 1: Falling in a Gravitational Field Take detailed notes as you perform the experiment and fill out the sections below. ![]() Experiment 2: In the second part of the lab, you will use a flashlight as an analogy to demonstrate the inverse-square law of gravity.Experiment 1: In the first part of the lab, you will subject a variety of objects to the force of gravity and discuss your observations.These components are described in detail in the eScience manual. This activity is based on Lab 10 of the eScience Lab kit. In this lab, you will perform experiments that illuminate the concept of gravitational interaction. Coulomb's Law dictating the force between two charged particles is also an inverse-square relationship.Gravitational interactions obey the inverse-square law.Objects may be separated by thousands of light years, but they experience gravitational attraction. Gravity acts over an infinite distance.Even so, gravity is largely responsible for the dynamics of our solar system, galaxy, and the Universe as a whole. In a relative sense, it is the weakest of the four fundamental interactions.Some interesting things to note about the gravitational force: ![]() We will learn about the other three in Physics II. Determined by magnitude of masses and separation. Responsible for certain types of radioactive decayįorce between all objects. These interactions are summarized in this table:įorce between charged particles. As you continue with your study of physics, you'll learn that there are four fundamental interactions in nature.
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