# Newton’s Laws Explained With Lego

Posted in Science at 1:00 pm by David Bradley

Everyone who studies any science at school will have come across Newton’s Laws of Motion. His three physical laws explain the relationships between the forces acting on a body and the motion of that body and were first published in 1687 in his magnum opus – Philosophiae Naturalis Principia Mathematica.

Newton’s laws underpin so-called classical mechanics, as opposed to quantum mechanics or relativity theory. I’ve summarised them below, but you’ll get a much clearer understanding of bodies in motion if you watch the video.

1. Objects stay still or move with constant velocity unless a force pulls on them or gives them a shove
2. Pulling or shoving an object changes its velocity (accelerates it) at a rate proportional to the force of the pull or shove
3. If you shove or pull an object it will pull or shove back with an equal and opposite force

And remember, gravity isn’t just a good idea, it’s the law!

### 22 Responses to “Newton’s Laws Explained With Lego”

1. Yuffie says:

This, was brilliant :D First of all: great video! Really great animation. Second of all: thanks for the easy explanation of Newton’s three laws. I still have some difficulties understanding the second law but I think I’m getting the hang of it.

2. Naomi, someone would be able to answer your question if it were written a little more clearly. As it stands, I cannot make head nor tail of what you’re trying to say.

3. naomi says:

what are yhu guys tlkn bout??/!!!!!! js playn i was thinkn to what will happn if we dont have gravity would they think of something else wat or where would we be now without it i think we might of created something or would we?????????????? lolx

4. @Dennis It’s odd that you say gravity is a law and that it cannot be changed…well isn’t there a certain 20th Century physicist who would beg to differ and suggested that gravity is little more than a distortion of the spacetime continuum due to the presence of mass? Maybe I misunderstood what you were alluding to, and yes, the data still looks the same at the levels we observe in our everyday lives.

5. Dennis Murray says:

The operating fields of gravity is to direct an object to a equal zero point of effect, or a notable (none) effect. Gravity is a Law, and cannot be changed, but its established fields of operation can be manipulated.
Just image gravity as the subject and under this subject are three categories. Each of these categories are a sub-operating field, and together they produce the end-result, which are expressed by Newton, and your video.