Newton's Laws of Motion
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Questions and Answers

What is the tendency of an object to resist changes in its motion?

  • Friction
  • Gravity
  • Momentum
  • Inertia (correct)

What is the force of gravity proportional to?

  • The product of the two masses and inversely proportional to the square of the distance between them (correct)
  • The difference of the two masses and the cube of the distance between them
  • The sum of the two masses and the square of the distance between them
  • The product of the two masses and the distance between them

What is the direction of the force and acceleration always in?

  • Diagonal direction
  • Same direction (correct)
  • Opposite direction
  • Perpendicular direction

What happens to an object in motion when no external force is applied?

<p>It continues to move with a constant velocity (A)</p> Signup and view all the answers

What is the formula for the force of gravity?

<p>F = G * (m1 * m2) / r^2 (A)</p> Signup and view all the answers

What happens to the acceleration of an object when the force applied to it is increased?

<p>It increases (A)</p> Signup and view all the answers

Study Notes

Newton's Laws

Inertia

  • First Law: Law of Inertia
    • An object at rest will remain at rest, and an object in motion will continue to move with a constant velocity, unless acted upon by an external force.
    • Inertia is the tendency of an object to resist changes in its motion.
    • Inertia is a fundamental property of an object and is dependent on its mass.

Gravitation

  • Universal Gravitation
    • Every point mass attracts every other point mass by a force acting along the line intersecting both points.
    • The force of gravity is proportional to the product of the two masses and inversely proportional to the square of the distance between them.
    • F = G * (m1 * m2) / r^2, where F is the force of gravity, G is the gravitational constant, m1 and m2 are the masses, and r is the distance between them.

Force and Acceleration

  • Second Law: Force and Acceleration
    • The force applied to an object is equal to the mass of the object multiplied by its acceleration.
    • F = ma, where F is the net force acting on an object, m is its mass, and a is its acceleration.
    • The direction of the force and acceleration are always in the same direction.
    • The more massive an object, the less it will accelerate when a given force is applied.
    • The greater the force applied, the greater the acceleration of the object.

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Description

Test your understanding of Newton's three laws of motion, including the law of inertia, universal gravitation, and force and acceleration. Learn how to apply these laws to real-world problems and understand the fundamental principles of physics.

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