Flashcard on Gravity and Newton

Front

What title was given to Newton by Queen Anne?

Back

Sir

Front

Who discovered that the Earth revolves around the sun?

Back

Nicolaus Copernicus

Front

What did Newton's discovery of gravity help explain about cannon balls?

Back

They fall to the ground.

Front

What did Newton realize about the Moon?

Back

It revolves around the Earth.

Front

What year did Newton die?

Back

1727.

Front

What is gravity?

Back

A force that attracts two bodies towards each other.

Front

What is the law of universal gravitation?

Back

Every point mass attracts every other point mass with a force that is proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

Front

What did Galileo Galilei contribute to the understanding of gravity?

Back

He conducted experiments that showed objects fall at the same rate regardless of their mass.

Front

What is the significance of Newton's first law of motion?

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

Front

What is inertia?

Back

The tendency of an object to resist changes in its state of motion.