Question

Match the law with its correct description:

1. Kepler's 1st law: law of ellipses
2. Kepler's 2nd law: law of equal areas
3. Kepler's 3rd law: harmonic law
4. Newton's 1st law of motion
5. Newton's 2nd law of motion
6. Newton's 3rd law of motion
7. Newton's law of universal gravitation

A. For every action, there is an equal and opposite reaction.
B. An imaginary line joining a planet to the Sun sweeps out equal areas in equal amounts of time.
C. Acceleration of an object depends on its mass and applied force.
D. The orbit of planets is not circular but elliptical.
E.Stationary objects resist movement, and moving objects resist stopping.
F.The greater the mass, the stronger the gravitational force.The greater the distance, the weaker the gravitational force.
G. Planets closer to the Sun orbit it in a shorter time period than planets further from the Sun.

Answer 1

1. Kepler's 1st law: law of ellipses: - D. The orbit of planets is not circular but elliptical.

2. Kepler's 2nd law: law of equal areas: - B. An imaginary line joining a planet to the Sun sweeps out equal areas in equal amounts of time.

3. Kepler's 3rd law: harmonic law: - Planets closer to the Sun orbit it in a shorter time period than planets further from the Sun.

4. Newton's 1st law of motion: - Stationary objects resist movement, and moving objects resist stopping.

5. Newton's 2nd law of motion: - Acceleration of an object depends on its mass and applied force.

6. Newton's 3rd law of motion: - For every action, there is an equal and opposite reaction

7. Newton's law of universal gravitation: - The greater the mass, the stronger the gravitational force.The greater the distance, the weaker the gravitational force

Hope this helps!

Answer 2

`(1)\rightarrow D\\(2)\rightarrow B\\(3)\rightarrow G\\(4)\rightarrow E\\(5)\rightarrow C\\(6)\rightarrow A\\(7)\rightarrow F`

Explanation :

1. Kepler's 1st law : It is also known as the law of ellipses. It is defined as the planets moves in an elliptical orbit not in a circular orbit.

2. Kepler's 2nd law : It is also known as the law of equal areas. It is defined as an imaginary line joining a planet to the Sun sweeps out equal areas in equal amounts of time.

3. Kepler's 3rd law : It is also known as the harmonic law. It is defined as the planets closer to the Sun orbit it in a shorter time period than planets further from the Sun.

4. Newton's 1st law of motion : It is defined as the stationary objects resist movement, and moving objects resist stopping.

5. Newton's 2nd law of motion : It is defined as the acceleration of an object depends on its mass and applied force.

6. Newton's 3rd law of motion : It states that for every action, there is an equal and opposite reaction.

7. Newton's law of universal gravitation : It states that the greater the mass, the stronger will be the gravitational force. The greater the distance, the weaker will be the gravitational force.