Physics Lecture Notes on Forces and Gravity

These flashcards cover fundamental concepts related to forces, friction, gravity, and motion, based on the lecture notes provided.

What is Newton's Third Law of Motion?

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

What are the four types of friction?

Sliding friction, rolling friction, static friction, fluid friction.

Who discovered the Universal Law of Gravitation?

Sir Isaac Newton in the 1600s.

What does the Law of Gravitation state?

All matter/energy has gravity, and the gravitational pull depends on distance and mass.

What is the difference between mass and weight?

Mass is the amount of matter in an object, while weight is the force of gravity pulling on that mass.

What is the acceleration due to gravity on Earth?

9.8 m/s².

What is terminal velocity?

The constant speed an object reaches when the force of air resistance equals the force of gravity.

What happens to falling objects in a frictionless environment?

They will continue to accelerate without reaching terminal velocity.

How does the gravitational pull change with distance?

The closer an object is, the greater the gravitational pull.

What causes ocean tides?

The gravitational pull of the moon.