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What is the primary characteristic of horizontal motion according to Galileo's concept?
What is the primary characteristic of horizontal motion according to Galileo's concept?
- It is only possible on a rough surface.
- It always results in a curved trajectory.
- It will continue indefinitely if unimpeded. (correct)
- It requires an external force to maintain.
What is the key difference between Galileo's and Aristotle's views on projectile motion?
What is the key difference between Galileo's and Aristotle's views on projectile motion?
- Aristotle believed projectiles move in a zigzag pattern, while Galileo believed they move in a spiral pattern.
- Aristotle believed in a straight trajectory, while Galileo believed in a curved one. (correct)
- Galileo believed in a straight trajectory, while Aristotle believed in a curved one.
- Galileo thought projectiles follow a circular path, while Aristotle thought they follow a rectangular path.
What is the term Galileo used to describe the combination of horizontal and vertical motions?
What is the term Galileo used to describe the combination of horizontal and vertical motions?
- Projectile motion
- Simple motion
- Linear motion
- Compound motion (correct)
According to Galileo's theory, what would happen to an object moving on a flat and frictionless surface?
According to Galileo's theory, what would happen to an object moving on a flat and frictionless surface?
What is the primary factor that affects the movement of a ball on a rough surface?
What is the primary factor that affects the movement of a ball on a rough surface?
What type of experiments did Galileo use to develop his ideas about motion?
What type of experiments did Galileo use to develop his ideas about motion?
What is the primary factor that determines the vertical motion of an object according to Aristotle?
What is the primary factor that determines the vertical motion of an object according to Aristotle?
What happens to objects made up of air according to Aristotle's theory of vertical motion?
What happens to objects made up of air according to Aristotle's theory of vertical motion?
What is the primary cause of horizontal motion according to Aristotle?
What is the primary cause of horizontal motion according to Aristotle?
What did Aristotle believe happens to an object when it contains amounts of earth elements?
What did Aristotle believe happens to an object when it contains amounts of earth elements?
What is the shape of the path of a projectile according to Aristotle's idea?
What is the shape of the path of a projectile according to Aristotle's idea?
What type of motion would Aristotle classify a paper falling on the ground as?
What type of motion would Aristotle classify a paper falling on the ground as?
According to Aristotle, what is the primary reason for an object's natural motion?
According to Aristotle, what is the primary reason for an object's natural motion?
Which of the following is an example of violent motion according to Aristotle?
Which of the following is an example of violent motion according to Aristotle?
What did Galileo infer about objects in a vacuum?
What did Galileo infer about objects in a vacuum?
According to Aristotle, what is the primary difference between natural motion and violent motion?
According to Aristotle, what is the primary difference between natural motion and violent motion?
What can be inferred about an object's motion based on its composition, according to Aristotle?
What can be inferred about an object's motion based on its composition, according to Aristotle?
What did Galileo conclude about force and horizontal motion?
What did Galileo conclude about force and horizontal motion?
What is the main reason a heavy object thrown in the sea will sink according to Galileo?
What is the main reason a heavy object thrown in the sea will sink according to Galileo?
What is the term used to describe the change in speed per unit time of a falling object?
What is the term used to describe the change in speed per unit time of a falling object?
What will happen to an object in horizontal motion in nature, according to the given statement?
What will happen to an object in horizontal motion in nature, according to the given statement?
What is the primary reason why an object's motion on a rough surface is impeded?
What is the primary reason why an object's motion on a rough surface is impeded?
What was the primary factor Galileo believed determined the speed of a falling object?
What was the primary factor Galileo believed determined the speed of a falling object?
What is the fundamental difference between Galileo's and Aristotle's views on projectile motion?
What is the fundamental difference between Galileo's and Aristotle's views on projectile motion?
What was the purpose of Galileo's Inclined Plane Experiment?
What was the purpose of Galileo's Inclined Plane Experiment?
What is the characteristic of motion that allows an object to continue moving without an external force?
What is the characteristic of motion that allows an object to continue moving without an external force?
What did Galileo observe about falling objects?
What did Galileo observe about falling objects?
What is the term used to describe the combination of horizontal and vertical motions?
What is the term used to describe the combination of horizontal and vertical motions?
What is the primary factor that affects the vertical motion of an object, according to Galileo's view?
What is the primary factor that affects the vertical motion of an object, according to Galileo's view?
What is the primary characteristic of Galileo's 'thought experiments'?
What is the primary characteristic of Galileo's 'thought experiments'?
What is the primary reason for an object's motion to change direction according to Aristotle's concept of projectile motion?
What is the primary reason for an object's motion to change direction according to Aristotle's concept of projectile motion?
According to Aristotle, what is the primary difference between the motion of objects made up of air and objects made up of fire?
According to Aristotle, what is the primary difference between the motion of objects made up of air and objects made up of fire?
What is the primary implication of Aristotle's concept of vertical motion on the concept of gravity?
What is the primary implication of Aristotle's concept of vertical motion on the concept of gravity?
What is the primary difference between Aristotle's and Galileo's views on horizontal motion?
What is the primary difference between Aristotle's and Galileo's views on horizontal motion?
What is the primary implication of Aristotle's concept of projectile motion on the concept of air resistance?
What is the primary implication of Aristotle's concept of projectile motion on the concept of air resistance?
What is the primary difference between Aristotle's and Galileo's views on the role of force in motion?
What is the primary difference between Aristotle's and Galileo's views on the role of force in motion?
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Study Notes
Galileo's Concept of Motion
- Galileo explained horizontal motion as an object continuing to move when unimpeded, without the need for an external force to maintain it.
- He used "thought experiments" to develop his ideas, analyzing possible outcomes without actual experimentation.
- On a flat and frictionless surface, an object pushed will continue moving, but on a rough surface, friction will slow it down and stop it.
- Galileo described projectile motion as a combination of horizontal and vertical motions, referred to as compound motion.
- He believed projectiles follow a curved trajectory, contrary to Aristotle's view.
Aristotle's Concept of Motion
- Aristotle's view on motion was based on observations and stood for many years.
- He believed motion can be either natural or violent.
- Natural motion occurs when an object moves and returns to its natural state, depending on its composition.
- Objects made of earth-like material will return to earth, while those made of air-like material will return to air.
- Violent motion occurs when an object moves after an external force, such as pushing or pulling, is applied.
- Aristotle believed that heavier objects would fall faster than lighter objects.
Galileo's Inclined Plane Experiment
- Galileo was fascinated by the behavior of falling objects and wondered which would hit the ground first if two objects of different mass were dropped at the same height.
- He observed that falling objects increase their speed as they go down, which is acceleration.
- He postulated that objects fall with uniform acceleration.
- Galileo used inclined planes to investigate acceleration through thought experiments, using a ball on a small slope to slow down the acceleration.
Comparing Aristotle and Galileo
- Aristotle believed that an object's motion depends on the kind of element that makes up the object, while Galileo believed that an object's motion is not dependent on its composition.
- Aristotle believed that projectiles move parallel to the ground until it's time to fall, while Galileo believed they follow a curved trajectory.
- Galileo's concept of motion was based on observation and experimentation, while Aristotle's was based on ideas about the natural world.
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