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When a ball is rolled over the floor it ultimately slows down and comes to a complete stop. You must pull the string or roll the ball again if you want the car or the ball to move again. To put it another way, you must exert force on them.
As a result of his observations and practical experiences, Aristotle came to the conclusion that a body must be kept in uniform motion by an external force. This is known as Aristotle's Fallacy.
What is a Fallacy?
Fallacy is a generic type of appeal, or a category of reasoning that appears to be reasonable. However, it is possible that we will not find it as convincing.
To make our fallacy search easier, we must examine the following factors:
- We should think of fallacies as different types of arguments.
- Fallacies can be proven to be false or unworthy.
- Someone can make a case for an argument that makes sense in some ways.
- The fallacy is a type of statement that resolves disagreements that are sometimes impossible to resolve or express as correct in front of others.
Aristotle’s Fallacy
Every day, you see a lot of moving items. There are additional things that you can make move. Assume you've set a toy vehicle or a spinning top spinning on the floor. What are your observations? The toy, like the car, comes to a halt after spinning or going for a while, don't they? This raises an interesting topic. Is there a need for an external force to keep a body in a consistent motion?
Aristotle’s theory is now outdated because he only studied one side of motion and failed to explain the other, namely, how does a moving body come to a stop? The concept of Friction, an opposing external force, was born.
A ball rolling on the floor, for example, comes to a halt after a period of time due to the opposing force of friction.
Aristotle’s Law of Motion
Aristotle made a statement about motion laws. According to him, the application of an external force keeps an object in a state of uniform motion. The object should continue to move forward with vigour without halting.
Newton's laws of motion refuted Aristotle's fallacy. He believes that an object in motion should come to a gradual halt without the need of external power. In order for the object to move, it requires a force.
Because there isn't enough external force to keep a ball rolling indefinitely, it eventually comes to a halt. The ball, however, is subjected to a variety of forces, including frictional force, wind force, and so on. After some time, these pressures may cause it to halt.
Different Kinds of Fallacies
There are numerous fallacies that undermine the argument's reasonable strength. The term "fallacy" refers to something that is logically erroneous. Human conversions can contain fallacies. Fallacies come in a variety of shapes and sizes, which makes them difficult to categorise.
Nonetheless, the fallacies are divided into two categories:
- Fallacies of structure and formal fallacies
- Informal or content fallacies
Formal Fallacies
- Quantification Errors
- Syllogistic fallacies in their formal form
- Fallacies in propositions
Informal Fallacies
- The premise is incorrect.
- Generalizations with flaws
- Cause for concern
- Fallacies of relevance
- Fallacies of the red herring
Need for External Force to Keep Body in Steady Motion
A moving toy automobile is said to come to a halt. However, the presence of the frictional force that the car experiences as a result of its contact with the floor is the true cause. Friction opposes its motion and finally causes it to come to a halt. So now, when you add force in the direction of the car's motion, you're basically overcoming or counteracting the frictional force and getting the car moving again.
It's worth noting that if there had been no frictional force, no force would have been necessary to keep the car moving. This means that in the absence of an external opposing force, a moving body will continue to move in the same direction indefinitely. Aristotle misunderstood this and based his reasoning solely on his own personal experiences. This is why the fallacy is known as Aristotle's fallacy.
Opposing forces, on the other hand, are always present in the natural world. As a result, we will require external assistance to overcome them.
Aristotle Fallacies: Example
Even if we continuously apply external force, we can't keep an item in uniform motion. External force is required to roll the ball or move the toy car, as we have discussed. It will come to a halt after the external force has been released.
Due to the action of another force known as friction, the motion was lost. The frictional force always acts in the opposite direction of the external force. Because the toy car's wheels make contact with the floor, the frictional force generated by the surface aids in the motion's elimination.
Things to Remember
- Aristotle put forth the theory that an external force is required to maintain uniform motion of a body.
- This theory became obsolete because it considered just one side of the motion, and failed to explain how a body comes to rest. This led to the concept of Friction as an opposing external force.
Sample Questions
Ques: Who formulated the Moment of Inertia? (1 mark)
Ans: The concept of the moment of inertia was created by Sir Isaac Newton. He explained and applied what he mentioned regarding the motion or the rest of an object. He also presented three laws of motion and explained how they work using real-life examples.
Ques: What Causes a Body's Inertia? (2 marks)
Ans: Because everyone is affected by the earth's gravitational attraction, they all have inertia. The influence of gravitational force either opposes or aids an object's rise or fall. This states that a body is inertia whether it is at rest or in motion.
Ques: Is an external force required to keep a body in uniform motion? (1 mark)
Ans: No, an external force is not required to keep a body in uniform motion. The body shall be in the state of rest or uniform motion unless an external force acts on it as stated in Newton’s First Law.
Ques: Describe the properties of uniform motion. (2 marks)
Ans: Let's have a look at circular motion. When running in a circular track, an athlete should adjust his or her speed as the direction changes. He appears to be moving at a consistent rate. Uniform motion occurs when a body revolves around a circular path or goes forward in a straight line at a constant pace.
Ques: What are Logical Fallacies? (2 marks)
Ans: Logic fallacies are the type of fallacies that are difficult to detect. You can't always judge someone's point of view. It's tough to understand whether someone speaks loudly, sneaks into daily meetings, or speaks in hushed tones.
Ques: Given an example for Aristotle’s Fallacy. (2 marks)
Ans: Due to the action of another force known as friction, the motion was lost. The frictional force always acts in the opposite direction of the external force. Because the toy car's wheels make contact with the floor, the frictional force generated by the surface aids in the motion's elimination.
Ques: What is Aristotle’s Fallacy in simple words? (1 mark)
Ans: Aristotle drew conclusions from his observations of practical experiences, concluding that a body must be kept in uniform motion by an external force. This is what is called Aristotle's fallacy.






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