Isaac Newton's Principia: Laws of Motion and the Discovery of Gravity

The video tutorial covers Isaac Newton's groundbreaking work on gravity and motion, explaining how gravity not only pulls objects toward Earth but also governs planetary orbits. It delves into Newton's three laws of motion, providing practical examples. The tutorial highlights Newton's creation of calculus to support his theories, a significant advancement in mathematics. It also touches on Newton's rivalry with Robert Hooke and his rise to prominence, becoming president of the Royal Society. The video concludes with a review and quiz questions to reinforce learning.

What is the role of gravity according to Newton's findings?

• All of the above.

• It only pulls objects towards the Earth.

• It causes the Moon to orbit the Earth.

• It causes the Earth to orbit the Sun.

Which of the following best describes Newton's first law of motion?

• Only some objects have gravity.

• An object at rest stays at rest and an object in motion stays in motion.

• All objects roll.

• You need energy to move.

What is an example of Newton's second law of motion?

• A book resting on a table.

• A car parked on a hill.

• A teacher walking forward.

• A ball remains still until kicked.

What does Newton's third law of motion state?

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

• Objects in motion stay in motion.

• Gravity pulls objects together.

• Energy is required to move objects.

What did Newton develop to support his scientific theories?

• A scale model of the solar system.

• A microscope.

• A new type of math called calculus.

• A log of all his experiments.

Why was calculus significant in Newton's work?

• It was a new way to measure time.

• It was used to create maps.

• It provided a mathematical basis for his theories.

• It helped him build telescopes.

What position did Newton hold in 1703?

• Chief Astronomer of England.

• Head of the University of Cambridge.

• Director of the British Museum.

• President of the Royal Society.