FORM 2-PHYSICS-TOPIC 7-NEWTON'S LAW OF MOTION

NEWTON'S LAW OF MOTION

1st law of Motion

The Concept of Inertia

Explain the concept of inertia

Inertia is the ability of a resting body to resist motion or a moving body to continue moving in a straight line when abruptly stopped.

The more mass a body has, the greater its inertia and vice versa is true.

Newton's First Law of Motion

State Newton's first law of Motion

Newton’s 1st law of motion states that “Everybody will continue in its state of rest or of uniform motion unless an external force acts upon it”

Verification of Newton's First Law of Motion

Verify Newton's first law of Motion

Activity 1

Experiment

Aim: To verify Newton’s 1st law of motion.

Materials and apparatus: Glass, manila card and small coin.

Procedures.

A small coin is placed on a manila card and the card is positioned on top of the glass such that the coin is directly positioned over the open mouth of the bottle.

Flick the card at C. Make sure that the card is not tilted by moving the finger in the horizontal plane.

Observation: When the card is flicked away quickly by finger, the coin drops neatly into the glass. The coin dropped into the glass because there was no force applied on it when the card was flipped.

Conclusion: The coin continued to be at rest as the card was flicked quickly. This experiment verify Newton’s 1st law of motion.