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.

12,350 Questions
Isaac Newton
Scientists

What experiment did Isaac Newton do in 1665?

The prism experiment.

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Physics
Isaac Newton
Newtons Laws of Motion

What affects force?

Mass and acceleration. Force = mass x acceleration

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Astronomy
Planetary Science
Isaac Newton

Did Isaac newton discover that the solar system is held together by gravity?

Yes, it was Sir Isaac Newton, during the year 1666 when, according to his journals, an apple fell on his head while he was sitting under a tree.

Newton's major contribution was to describe gravity as an inverse-square law and he produced a formula that allows the force between two bodies to be calculated if the distance and the two masses are known. It was already known that an inverse-square law explained the elliptical orbits of the planets, but Newton's improvement allowed the masses of the planets to be calculated.

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Physics
Isaac Newton
Newtons Laws of Motion

If a moving body has no acceleration does it mean that no force is acting on it?

It means there is no net force acting on it.

A plane in the air has no acceleration, but it does have forces acting on it.

Lift pushes it up

Gravity pushes it down

Air resistance opposes its movement

Thrust provides movement

When all these forces are equal the plane will move at a constant velocity. If one of these forces becomes greater the NET force on the plane will no longer be 0 and there will be an acceleration or deceleration.

Hope that helps.

Another example would be space as there are no opposing forces, if in space once a speed was that speed would be constant until you 1.) decelerated with a force in the opposite direction 2.) accelerated the speed past your current velocity in your current direction 3.) Get caught by some planets gravity and crash to you death (but then this question is the least of your problems)

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Science
Physics
Isaac Newton

What is an example of force mass acceleration?

It takes every human being on the planet to force the mass of your body to accelerate.

A total force of 2 Newtons on a mass of 3 Kg would cause the mass to accelerate at 6 metres/sec2. Note that the acceleration is caused by the sum of all forces, so if the mass is glued to a table top there is a resisting force which causes the net force to be zero. (or you might move the table too, but then you have a different total mass then, and friction on the floor resisting motion too).

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Physics
Isaac Newton
Newtons Laws of Motion

A cyclist and her bike have a combine mass of 60 kg the net forward force on them is 180 N What is her acceleration?

F = M A

A = F / M = 180/60 = 3 meters per second2

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Math and Arithmetic
Isaac Newton

What are some things named after sir isaac newton?

Newtons cradle

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Physics
History of Science
Isaac Newton

Which law proved that newton's gravity law is wrong?

Newton's Law of Gravity is not wrong, in macroscopic scale and at relatively low speed, it predicts the movement of objects accurately.

However, objects at microscopic scale near the speed of light will have to take into account time dilation, and General Relativity helps describes these.

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Physics
Isaac Newton

How is inertia related to mass and acceleration?

Inertia is matter's unwillingness to slow down, speed up, or change direction in any way. It is also related to the matter's momentum. Momentum is caused by the body's velocity as well as the body's direction. If the velocity of the matter is increasing, or the body changes its direction, it can be said that the body of mass is experiencing inertia.

When the body is accelerating (changing in velocity), the momentum of the matter is also changing (F=ma), thus mass and acceleration is related by momentum through inertia.

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Isaac Newton
Thomas Edison
Marie Curie

Did Isacc Newton invent the light bulb?

No, Thomas invented the light bulb

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Science
Isaac Newton

Does everything need a force to move?

No force is required for an object to move with constant velocity, but you need a force to accelerate an object (make velocity increase or decrease).

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Physics
Isaac Newton
Newtons Laws of Motion

The larger an object's mass the larger its.....?

The larger the objects mass the larger the inertia and also the gravitational force.

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Isaac Newton

Where any of Isaac Newton's siblings scientists?

no i dont reckon so.

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Isaac Newton
Newtons Laws of Motion

What sport displays newton's first law of motion?

the first law is:

An object at rest stays at rest and an object in motion stays in motion unless acted on by an outside force

so all of them.

-in golf, the golf ball will move when hit and stop only when gravity and friction make it happen.

in this case the ball is at rest on the tee and will not move until struck by the club (acting as ouside force 1), at which poin it then flies out until the friction of the air and gravity's pull force it back down to the earth, at which point friction with the ground is then added which all conspire to slow the ball to a stop.

-in foot ball, the players run with the ball until tackled by another player.

in this case the two players are the opposing forces

-in baseball the ball is thrown is moves toward the catcher until either the bat strickes it and it is sent elsewhere, or the catcher catches it and throws it back to the pitcher.

in this case the ball is the object and the bat and pitcher are the outside forces acting on the ball to give it motion.

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Isaac Newton

Why is Isaac newton's last name important?

i don't know yall won't tell me

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Math and Arithmetic
Isaac Newton
Mathematicians

What made Sir isaac Newton Famous in Math?

He discovered gravity when an apple fell on his big forehead. He discovered that the same force acts between the Sun and the planets to make them move in stable elliptical orbits. To do that he had to invent the laws of motion and also the differential calculus. Quite a feat that no-one else had managed, even after 1500 years of thinking (he died while thinking) about how the planets moved around.

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Science
Physics
Isaac Newton

Does increasing sliding mass increase friction?

yes

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Science
Physics
Isaac Newton

What variables represent force mass and acceleration?

foe

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Science
Chemistry
Isaac Newton

Name one scientific contribution of Isaac Newton?

How about three. His three laws of motion. (Taken from Wikipedia)

  • First Law: Every body remains in a state of rest or uniform motion (constant velocity) unless it is acted upon by an external unbalanced force. This means that in the absence of a non-zero net force, the center of mass of a body either remains at rest, or moves at a constant speed in a straight line.
  • Second Law: A body of mass m subject to a force F undergoes an acceleration a that has the same direction as the force and a magnitude that is directly proportional to the force and inversely proportional to the mass, i.e., F = ma. Alternatively, the total force applied on a body is equal to the time derivative of linear momentum of the body.
  • Third Law: The mutual forces of action and reaction between two bodies are equal, opposite and collinear. This means that whenever a first body exerts a force F on a second body, the second body exerts a force −F on the first body. F and −F are equal in magnitude and opposite in direction. This law is sometimes referred to as the action-reaction law, with F called the "action" and −F the "reaction".
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Math and Arithmetic
Isaac Newton
The Difference Between

What is the relation between newton and dyne?

The newton comes from the MKS (kg-m-s) system

The dyne comes from the CGS (cm-g-s) system.

This means that:

1N=1 kg*m/s²

1dyn=1 g*cm/s²

And therefore that

1N=10^5 dyn

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History, Politics & Society
Physics
Geometry
Isaac Newton

What is another name for the Newton's Times a meter is the?

Joule

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Isaac Newton
Scientists
Gravity

What risks did isaac newton take?

yepp

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Physics
Isaac Newton
Newtons Laws of Motion

What is the acceleration of a 1500-kilogram truck with net force of 7500 newtons?

F=ma

a=F/m

a=7500/1500

a=5m/s^2

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Isaac Newton
Mathematicians

What did Isaac newton discover about universe?

He discovered gravitational force and established the three Universal Laws of Motion.

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Math and Arithmetic
Physics
Isaac Newton

What is the example of law of inertia?

example for law of inertia - in moving car when the brakes are applied all of sudden the passengers lean forward because the brakes are applied on moving car and not on bodies of passengers. So bodies keep moving while the car retards.

example for law of acceleration - to move a standing object we need to apply force and to stop a moving object we need to apply brakes - this is law of acceleration.

law of interaction - when the horse pulls a cart, the cart pulls back the horse or when you hit a wall you get hurt as wall also hits you back.

Answer

It is quite simple, that is everything contains enertia i.e the reluctance to change what it is doing. The first answer is a good example. Both car and passengers travel at 40 kl per hr. The car breaks but the passengers still wish to move with a forward motion of 40 kl per hr.

The third answer is not quite correct. As the horses collar is attached to the cart therefore becomming part of it, the horse pushes the cart.

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