Directions: Use the information provided and your knowledge of Physical Science to answer the following questions. Show all work where necessary.
Directions: Use the information provided and your knowledge of Physical Science to answer the following questions. Show all work where necessary.
Diagram 1.
Source: https://www.examples.com/physics/gravitation.html
An object released from rest falls toward Earth even though it is not touching Earth. The object begins to move immediately after it is released, showing that a force is acting through the space between the object and Earth.
Some forces act only when objects touch, such as a push or a pull with your hands. Other forces act at a distance, meaning they affect objects without contact. Gravity is one of these forces. Every object with mass attracts other objects with mass through a gravitational field.
Earth has a very large mass, so it creates a gravitational field that extends outward into space. Any object placed within this field experiences a gravitational force pulling it toward Earth’s center. This happens even when the object is not touching Earth, which provides evidence that the force is acting through the space between them.
When an object is dropped, gravity begins pulling on it immediately. The object accelerates downward because it is inside Earth’s gravitational field. The force causing this motion is not the result of contact with the ground or air but the interaction between Earth’s mass and the object’s mass through the field.
Diagram 2.
Source:
https://animalia-life.club/qa/pictures/gravitational-force-images
To investigate this, students can collect data about fall time, drop height, or motion patterns. If an object begins to move as soon as it is released, this shows that a force is acting without contact. Comparing data from different heights allows students to observe consistent patterns caused by gravity, strengthening the evidence that a field exists.
A strong investigation controls how the object is released, uses accurate timing methods, and repeats trials to reduce error. Students should also consider factors such as air resistance and human reaction time when analyzing their results.
By conducting and evaluating this type of investigation, students can provide evidence that a gravitational field exists between Earth and objects, allowing gravity to act even when the objects are not in contact.
Table 1.
Drop Height (m) | Time to Hit Ground (s) | Final Speed (m/s) | Change in Speed from Lowest (m/s) |
|---|---|---|---|
0.5 | 0.32 | 3.1 | 0 |
1 | 0.45 | 4.4 | 1.3 |
1.5 | 0.55 | 5.4 | 2.3 |
2 | 0.64 | 6.3 | 3.2 |
2.5 | 0.71 | 7 | 3.9 |
Graph of Information - Figure 1.
Graph of Information - Figure 2.
Using the reading, explain why an object begins to move immediately after it is released, even though it is not touching Earth.
Using Table 1, describe how the final speed of the object changes as the drop height increases.
Which statement best describes the pattern shown in Table 1?
Which conclusion is best supported by Figures 1 and 2?
How does the data show that the object experiences a change in motion while falling?
A student claims: “A gravitational field exists between Earth and an object because the object falls even when it is not touching Earth.” Do you agree or disagree? Use evidence from the investigation to support your answer.
Claim:
Evidence:
Reasoning: