Podcast
Questions and Answers
What shape is obtained when a cone is cut by an inclined plane?
What shape is obtained when a cone is cut by an inclined plane?
- Hyperbola
- Ellipse (correct)
- Parabola
- Circle
How many focal points does an ellipse have?
How many focal points does an ellipse have?
- One
- Three
- Two (correct)
- Four
According to Kepler's first law, what shape is the orbit of a planet around the Sun?
According to Kepler's first law, what shape is the orbit of a planet around the Sun?
- Circle
- Ellipse (correct)
- Parabola
- Hyperbola
What is Kepler's second law about?
What is Kepler's second law about?
In Kepler's third law, what is directly proportional to the cube of the mean distance of a planet from the Sun?
In Kepler's third law, what is directly proportional to the cube of the mean distance of a planet from the Sun?
If a planet covers equal areas in equal intervals of time, according to Kepler's laws, what shape does its orbit have?
If a planet covers equal areas in equal intervals of time, according to Kepler's laws, what shape does its orbit have?
What did Kepler obtain from the study of planets' positions?
What did Kepler obtain from the study of planets' positions?
How did Newton's theory of universal gravity relate to Kepler's laws?
How did Newton's theory of universal gravity relate to Kepler's laws?
What did Johannes Kepler use to discover the laws of planetary motion?
What did Johannes Kepler use to discover the laws of planetary motion?
Which law states that every object in the Universe attracts every other object with a definite force?
Which law states that every object in the Universe attracts every other object with a definite force?
What is the mathematical expression for the gravitational force of attraction between two objects with masses m1 and m2 kept at a distance d from each other?
What is the mathematical expression for the gravitational force of attraction between two objects with masses m1 and m2 kept at a distance d from each other?
Why did Newton use Kepler's laws in formulating his theory of gravity?
Why did Newton use Kepler's laws in formulating his theory of gravity?
What does 'centripetal' mean in the context of the text?
What does 'centripetal' mean in the context of the text?
What happens to the direction and speed of the moon during its orbit around the Earth?
What happens to the direction and speed of the moon during its orbit around the Earth?
If no force acted on the moon during its orbit, what would be its motion like?
If no force acted on the moon during its orbit, what would be its motion like?
Do all planets in the solar system revolve around the Sun similarly to how the moon revolves around the Earth?
Do all planets in the solar system revolve around the Sun similarly to how the moon revolves around the Earth?
In Kepler's Laws, what is described by the first law?
In Kepler's Laws, what is described by the first law?
What did Johannes Kepler notice about planetary motion when studying the data available to him?
What did Johannes Kepler notice about planetary motion when studying the data available to him?
