The Force of Gravitational Attraction between the Earth and the Moon

The video tutorial explores the gravitational relationship between Earth and the Moon, using Newton's universal law of gravitation. It calculates the gravitational force and discusses the concept of centripetal acceleration, correcting misconceptions about uniform acceleration. The tutorial emphasizes the Moon's orbit around Earth, driven by centripetal force, and concludes with a discussion on the long-term fate of Earth due to the Sun's evolution.

What is the mass of the Earth as mentioned in the video?

• 3.84 * 10^8 kg

• 6.67 * 10^-11 kg

• 7.3 * 10^22 kg

• 5.97 * 10^24 kg

Which equation is used to calculate the gravitational force between two masses?

• Ohm's Law

• Pythagorean Theorem

• Newton's Universal Law of Gravitation

• Einstein's Theory of Relativity

What is the calculated gravitational force between the Earth and the Moon?

• 3.84 * 10^8 N

• 5.97 * 10^24 N

• 2.0 * 10^20 N

• 1.97134 * 10^20 N

What is the approximate acceleration of the Moon towards the Earth?

• 1.97134 m/s^2

• 3.84 m/s^2

• 9.8 m/s^2

• 0.0027 m/s^2

Why is the prediction of the Moon crashing into Earth incorrect?

• The distance between Earth and Moon is increasing.

• The Moon is not affected by Earth's gravity.

• The acceleration is not uniform due to other forces.

• The Moon is moving away from Earth.

What type of acceleration keeps the Moon in orbit around the Earth?

• Centripetal acceleration

• Gravitational acceleration

• Uniform acceleration

• Linear acceleration

What will eventually happen to the Earth in about 7 billion years?

• It will collide with the Moon.

• The Earth will freeze over completely.

• It will be consumed by a black hole.

• The Sun will expand into a red giant and affect Earth.