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Isaac Newton

The English scientist, theologian and mathemetician who formulated important laws of gravitation and physics. This category is designed to collect questions about the man, his work, and his philosophies.

3,542 Questions

What happens to acceleration if both mass and force remian constant?

Since acceleration = force / mass, it will fall as mass increases.

Progressive loss of mass is much more likely to occur in real life - for instance with a rocket, which burns fuel as it goes. In this case, acceleration will increase.

Does newton's first law deals most closely with inertia?

Yes, Newton's first law states that an object will remain at rest or in uniform motion unless acted upon by an external force. This law is often associated with inertia, which is the tendency of an object to resist changes in its motion.

Is you cant blow your own sail part of newtons law?

No, "you can't blow your own sail" is not part of Newton's laws of motion. Newton's laws of motion describe the relationship between an object and the forces acting upon it, focusing on concepts like inertia, acceleration, and action-reaction pairs. This phrase is more related to the idea that one cannot cause their own forward motion without an external force.

What was Isaac Newton's contribution to mathematics and its example?

Isaac Newton made significant contributions to mathematics through his development of calculus, a branch of mathematics that deals with rates of change and accumulation of quantities. An example of his work is his discovery of the fundamental theorem of calculus, which relates the concept of differentiation and integration.

Is a rocket sitting on the ground preparing for take off but needs an outside force to overcome its inertia of a non-moving object a good example of newton's third law of motion?

i would think that it's an okay answer... but saying something like

Pushing a stopped ball

This shows that the object had no energy, and it was effected by an outside force.

The rocket example is different because you could be lighting energies with potential inside the rocket.

Did isaac newton have famous friends?

Yes, Isaac Newton had famous friends, including Edmond Halley, who collaborated with him on the publication of Newton's most famous work, "Philosophiæ Naturalis Principia Mathematica." Newton also corresponded with other prominent scientists and scholars of his time, such as Robert Hooke and Gottfried Wilhelm Leibniz.

What are some similatites and differences between newtons 3 laws?

Similarities:

  1. All three laws describe the relationship between an object's motion and the forces acting on it.
  2. They apply to all objects, regardless of their size or speed.

Differences:

  1. The first law (inertia) states that an object at rest stays at rest unless acted upon by a force, while the second law (F=ma) describes how the acceleration of an object is related to the net force acting on it.
  2. The third law (action-reaction) states that for every action, there is an equal and opposite reaction force, highlighting the interaction between two objects.

Who was named the Isaac Newton of electromagnetism?

James Clerk Maxwell is often referred to as the Isaac Newton of electromagnetism for his groundbreaking work in formulating the equations that describe the behavior of electric and magnetic fields. His contributions laid the foundation for modern classical electromagnetism theory.

Was newton third law have any defect?

Yes, it has. According to Newton's 3rd law of motion, action and reaction are equal in magnitude but opposite direction given that friction is removed. But we need to understand why the reaction happens. Here I tell u:

1. When we exert a force on an object, then energy is transmitted from our body to that object. According to the laws of physical chemistry, every system tends to keep its energy consistent relative to the atmosphere. Here the point comes. When an extra energy enters this system, this system to remain stable should have to lose this energy otherwise it will collapse and that's why reaction happens.

2. About the defect now, Newton says that there should be no resistance but we can't ignore resistance even in ideal conditions. I just want to say that this reaction occurs due to resistance of that system. The system tries to resist the external extra energy, which means it resists the external force. This is necessary to remain stable otherwise with no resistance system will collapse and how will the reaction occur if the system collapses? An example is when we apply extreme force on a body. Since there is a limit to this resistance by the body, when an extreme force is applied it can't show much resistance and is crushed into pieces. The reaction in such a case is not a strong one, the system becomes unbalanced and unstable and thus collapses. Another example is of a rubber band. Note that the resistance I am talking about is not parallel to the surface of the system but it acts within the particles of the system due to electronic repulsion, energy consistency and atomic or molecular bonds.

3. Another defect is in the flow of energy in a medium it is not one directional. Energy travels in the form of waves in all directions but not equally. When we apply a force on a system energy is transferred to it. As I mentioned before, to remain stable it has to lose this energy in any case but this energy do not travels just back but is transferred to the surrounding all over in every direction. Although its effect is greater along the axis it is applied. We can take the example of snooker. Note that stability is necessary for this action reaction process.

4. These facts tell us action and reaction are not equal in magnitude along the same axis through which the force is applied but are proportional. In other words, we can say that the two sentences "action and reaction are equal in magnitude" and " opposite in direction" if used collectively are wrong.

What did sir Isaac do when he was a royal mint warden?

The office was given to him with the expectation that it would largely be a sinecure, but he took it more seriously than anticipated, and was in fact very active in rooting out counterfeiters and bringing them to justice.

How does newton's law of universal gravitation relate to hockey?

Newton's law of universal gravitation describes the force of gravity between two objects with mass. In hockey, gravity affects the movement of the puck and players on the ice surface. Players need to consider gravity when shooting, passing, and skating to anticipate how the puck and their movements will be influenced by gravitational forces.

Who discover gravity?

Gravity was discovered by Sir Isaac Newton.
That's like asking who invented planets, or water. Nobody had to invent gravity.

It was always there, but the English Physicist/Mathematician Sir Isaac Newton

gets the credit for explaining how it works, around the year 1700 or so.
People had been aware of gravitatonal force for hundreds of years before English Scientist Sir Isaac Newton wrote his Principia in 1687 which was the first attempt to set out the laws of gravity.

How does newtons third law of motion describe forces?

It shows that everything that happens will a reaction of equal force in the other direction. for example when you exert 20 pounds of pressure on the ground the ground will puch 20 of pressure back.

What make Isaac Newton great?

Isaac Newton was a great scientist because of his groundbreaking work in physics and mathematics. He formulated the laws of motion and universal gravitation, laying the foundation for classical mechanics. His invention of calculus also revolutionized mathematics and science.

What determines whether an object will rotate when a force is applied on it?

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How can an object travelling in one direction be accelerated in another direction?

An object traveling in one direction can be accelerated in another direction by applying a force in the desired direction. This force will cause the object's velocity to change, leading to acceleration in the new direction. The acceleration will depend on the magnitude and direction of the force applied.

Who did Robert hooke have an argument with and why?

Robert Hooke had arguments with several contemporaries, including Isaac Newton. One reason for their dispute was over the invention of calculus, with accusations of plagiarism being thrown around. Another point of contention was Hooke's claim that he had a mathematical proof for the inverse square law of gravity, which Newton later refuted.

Do Isaac Newton have a favorite book?

Isaac Newton's favorite book is said to be "Quaestiones Quaedam Philosophicae" by John Pell, a mathematician and scholar whom Newton greatly respected. Newton wrote extensive notes in his copy of the book and credited Pell with sparking his interest in mathematics.

What are the law of motion safety and protection?

The laws of motion, particularly Newton's laws, help to predict and understand the behavior of objects in motion. Following safety guidelines and wearing appropriate protection (such as helmets or seatbelts) can help prevent injuries and accidents by reducing the risks associated with motion and physical forces. By integrating both principles, we can ensure safer activities and environments for individuals in motion.

Why does a pencil bounce when it falls on the ground and i don't want the answer as newton 3rd law of motion but in depth how it really bounces?

When an object is in motion, such as a falling pencil, it posseses energy, there fore something must absorb it's energy to stop it to a rest. (example- a car in motion stops by the brAke absorbing it's energy). But energy is never destroyed or created, it can only be transferred from one form to another (example- the cars brakes heat up when used because the cars energy is being transferred to heat energy). So, the instant the falling pencil strikes the ground, it stops

falling correct? But the energy the previously falling pencil possess must be transferred to another form of energy the energy can't be

"lost" right? So what happens is some of the energy is converted to heat when it strikes the ground, you may not believe it but there is heat when it hits the ground because of friction. Furthermore, some of the energy is also converted to sound energy. (the pencil makes a sound when it hits the ground and sound is energy) but the heat and the sound energy combined is not enough to transfer all of the energy of the falling pencil. So where does this little extra energy go? You guessed it! Back up! It hits the ground, it goes back up because not all of it is transferred to another form such as sound or heat so it must go back up- or as you said, bounces. Hope this helped you understand.

What was Sir Isaac Newtons favourite game?

Sir Isaac Newton's favorite game was believed to be chess. He was known to have a great interest and skill in playing chess, often engaging in strategic and intellectual battles with his contemporaries.

What are the two forces acting on a person as they move up and down in an elevator and when are these two forces equal and when are they not equal?

When the elevator is still the force of gravity due to your weight pressing downwards on the floor is equalled exactly by the floor pushing you upwards with the same force. When the elevator rises you feel a little heavier, and the elevator is pushing upwards with the same increased force. When the elevator descends you feel that you lose a little weight, and the floor pushes up at you with the equally reduced force, so you descend.

Why doesn't F equals ma work at high speeds?

We're not aware of any [non-relativistic] situation in which it appears to fail.

We'd appreciate the questioner coming back and describing one, for discussion.

What do you mean by "high speed" ? In what way does the formula not work ?

What did Isaac newton discover about universe?

Isaac Newton discovered the laws of motion and the law of universal gravitation, which revolutionized our understanding of the universe. His work laid the foundation for classical mechanics and provided a framework for understanding the motion of objects in space.

How did isaac newton propose placing a cannonball in orbit as satellite?

Isaac Newton never proposed placing a cannonball in orbit as a satellite. However, he did propose the concept of a hypothetical scenario involving firing a cannonball from a hypothetical mountain so fast that it would circle the Earth. This thought experiment helped him develop the theory of gravity and understanding of orbital mechanics.

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