Gravity

Introduction

One of the most widely known topics in physics is the Isaac Newton's discovery of Gravity. So I thought it would be great to freshen up our knowledge about this great topic with a short video about the Isaac Newton's life when he was a widely know physician. 

Here is the video: 

https://www.youtube.com/watch?v=7gf6YpdvtE0

 

Task

Answer to the given questions as closely as possible because the questions are based on the content of the video. Good luck.

Process

Here is the video again:

https://www.youtube.com/watch?v=7gf6YpdvtE0

These are the questions:

  1. Where did Newton first came to the realisation of the force of gravity?
  2. What is the equation of gravity?
  3. What is the gravitational force proportional to?
  4. Which scientist solved the problem with the unknown part of Newton’s equation for the universal gravitation?
  5. How many years earlier did Kepler came up with his laws of how orbits work?
  6. How many laws did Kepler come up with?
  7. Did Newton’s laws of gravity fit with Kepler’s laws or Newton was forced to show the world that Kepler was wrong?
  8. What does NASA need to upgrade to manage to send astronauts to Mars?
  9. How do the astronauts call the practise plane flights that simulate Mars gravity?
  10. What is the gravitational acceleration on the surface of Mars like?

Evaluation

These are the answers to the questions:

1.In his mother’s garden under an apple tree.

2.Gravity = the object’s mass + its acceleration

3.First object’s mass multiplied by second object’s mass divided by the radius squared

4.Henry Cavendish

5.50 years earlier

6.Three

7.His laws of gravity fit Kepler’s laws (so did his laws of motion)

8.They need to adjust the space suits and train the astronauts for the gravity of Mars.

9.Vomit comets

10.3.7 meters per second squared

 

If you answered from 10 to 8 questions correctly then you did a great job.

If you answered from 7 to 4 questions correctly then you did good but you should practice a bit more.

If you answered less then 3 correctly then go back and watch the video again and repeat the task again.

Conclusion

I hope you had a blast just like I did making this WebQuest. This was informative and greatly interactive. Thank you for the participation.

Credits

Austris Karpinskis 12.b

video taken from Youtube.com