Isaac Newton 3 Laws of Motion /Newton's Laws

The video tutorial introduces Isaac Newton and his groundbreaking contributions to physics, focusing on his three laws of motion. The first law, inertia, explains how objects remain at rest or in uniform motion unless acted upon by an external force. The second law describes the relationship between an object's mass, acceleration, and applied force. The third law states that for every action, there is an equal and opposite reaction, demonstrated through Newton's Cradle. Each law is explained with examples to enhance understanding.

What is the main idea behind Newton's first law of motion?

• For every action, there is an equal and opposite reaction.

• An object will remain at rest or in uniform motion unless acted upon by an external force.

• Energy cannot be created or destroyed.

• The force applied to an object is equal to its mass times its acceleration.

Which of the following best describes the relationship in Newton's second law of motion?

• Force is inversely proportional to mass and acceleration.

• Force is directly proportional to mass and inversely proportional to acceleration.

• Force is directly proportional to both mass and acceleration.

• Force is inversely proportional to mass and directly proportional to acceleration.

If you kick a football with a greater force, what happens to its acceleration according to Newton's second law?

• The acceleration decreases.

• The acceleration remains the same.

• The acceleration increases.

• The acceleration becomes zero.

What does Newton's third law of motion state?

• An object in motion stays in motion unless acted upon by an external force.

• Energy is conserved in a closed system.

• The force applied to an object is equal to its mass times its acceleration.

• For every action, there is an equal and opposite reaction.

In the context of Newton's Cradle, what happens when the first sphere is released?

• The first sphere stops moving immediately.

• The first sphere bounces back without affecting the others.

• The momentum is transferred through the spheres, causing the last one to move.

• All spheres move in the same direction simultaneously.