Find More Science Experiments
Newton’s Third Law of Motion: For every action there is an equal and opposite re-action.
SIMPLY: If you push an object, that object pushes back in the opposite direction equally hard.
In this video, an astronomer demonstrates Newton’s Third Law of Motion:
Here are some websites to help you demonstrate and learn about Newton’s 3rd Law:
- Bill Nye: Marble Madness
- Physics4Kids: Newton’s Laws of Motion
- Rice University: Newton’s Laws of Motion
- WonderHowTo Video: How to Demonstrate Newton’s Third Law of Motion
Gizmos and Gadgets – Action-Reaction Rocket (Pages 18-26)
Here are some books that will help you do some reseach for your experiment if you are doing it for the science fair. | |||
Words to Know:
Newton’s Third Law of Motion – For every action there is an equal and opposite re-action.

You’re welcome!
Thanks so much!
Thanks I really needed it!
So awesome
dats khooollll…..
This is great…thanks
this is cool it give u the answers
Thx! This is the bomb!I got all the info i need
Do you have more examples for the thrird law like experiments?
hi this is easy
omg thank you so much
What do you need help with?
what the hecks yall crazy ones!!This didnt help at all!!
What do you need help with that you are not finding here?
This website is not a helpfull website
awesome thnx
Do you Know what is the Newton’s Second law of motion
Find out by clicking on the link here
http://bit.ly/1sAqG57
hi
This helped a lot, thanks.
This is so awsome
This is not enough information Gv me more
This is so gr8
What do you need to know still?
needed more info.NOT ENOUGH DOOD !!!!
wonderful info !! thnx kids blog !!!!!!!!!!!!!
it need’s more infermation
This website is so cool I wish there was @!%$ in this website
This website is so lame!!!!!!!!!!!!!!!!!
i need smthing scary………………
this website did’nt help at all
man…its awesome!!!! love physics
man…..it’s awesome! the rocket……oh my gosh! ๐
Helped sooooooooooooo much .Thanks
!!!!!!!
You are so welcome Emilie. Hope you get an “A”.
thank you soooooooooooooo much for that info I really needed it
thx so much!
thx for the help i needed it am not so good at the laws of motion
this is so helpful
@fcowey I checked with a recent Physics graduate from Wabash College in Crawfordsville Indiana and he did agree with you that Newton’s Cradle is not technicalled a great example for Newton’s Third Law and I have removed that one as an example. He also suggestion another video from Wonderhowto.com to help understand Newton’s Third Law. http://teaching.wonderhowto.com/how-to/demonstrate-newtons-third-law-motion-223910/
He thought that Newton’s Cradle “shows a concept called “conservation of momentum” because the momentum of the first ball is transferred to the momentum of the last ball.When you have two balls, you have twice as much momentum coming in, so this momentum has to be transferred to two balls on the other side of the cradle instead of one.” Thanks for your comment!
I’m not on board about the N.cradle representing the 3d law. The ball at the end is moving in the SAME direction as the original ball: I see no opposite FORCE, only its location at the opposite end of balls. The 3d law is operating at the point where the first ball strikes the second ball: a force applied from ball 1 onto ball 2, is met with an equal REACTION force from ball 2 onto ball 1.
The rocket demos, both real & toy do the following: the rocket/bottle exerts a pressure force on the expanding gases, pushing them out the rear, while the gases exert an equal return/reaction force IN THE OPPOSITE DIRECTION on the rocket.
Paired action-reaction forces occur between two objects/masses exerting mutual forces on each other.
this is cool and helpful! thx soo much!
I like turtles.
Do you have example of balls in motion that revolve around each other, like planets in orbit?
Thanks so much for the info! I HATE projects.
LOL thx 4 the the info!
HHHHHHHAaaaaayyyyyyyyyyyyy ๐ this is an awsome site even tho i didnt even read anythinnnggggggg ๐