# Idea for "science fair" project?

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• Jun 18th 2013, 04:19 AM
Paze
Idea for "science fair" project?
Hey MHF. On the 23rd I am to present a real-life functional project that in some clever way, utilizes Newton's laws. I must deliver it completely with calculations.

Does anyone have any good ideas for such a project?

Thanks.
• Jun 18th 2013, 06:51 AM
Prove It
Re: Idea for "science fair" project?
For starters, do you know Newton's Laws?
• Jun 18th 2013, 07:01 AM
Paze
Re: Idea for "science fair" project?
Quote:

Originally Posted by Prove It
For starters, do you know Newton's Laws?

Yes, I do.
• Jun 18th 2013, 07:03 AM
Prove It
Re: Idea for "science fair" project?
Quote:

Originally Posted by Paze
Yes, I do.

OK, so please write them down here, just looking at them may spark up an idea :)
• Jun 18th 2013, 07:18 AM
Paze
Re: Idea for "science fair" project?
Quote:

Originally Posted by Prove It
OK, so please write them down here, just looking at them may spark up an idea :)

Good idea.

Newton's first law: All objects in motion, stay in motion (at the exact same velocity/acceleration) unless a force acts on them. Same applies to an object in rest.

Newton's second law: F=MA. The force of an object can be described as its mass times its acceleration.

Newton's third law: Any action has an identical reaction. Any force applied on an object has an identical force in the opposite direction.
• Jun 18th 2013, 07:27 AM
Prove It
Re: Idea for "science fair" project?
OK, just because I have a mind that prefers to make up its own movie when it's bored, I'd put myself in the shoes of a hitman/hired goon. You could think about how if you want to cause harm to a person, you can either hit them with something big and heavy (such as a brick), or hit them with something small moving very fast (like a bullet shot from a gun). Then you can list a few different ways you could hurt/kill someone, because the force applied to the object would be great either from the higher mass or higher acceleration...
• Jun 18th 2013, 09:06 AM
Paze
Re: Idea for "science fair" project?
Quote:

Originally Posted by Prove It
OK, just because I have a mind that prefers to make up its own movie when it's bored, I'd put myself in the shoes of a hitman/hired goon. You could think about how if you want to cause harm to a person, you can either hit them with something big and heavy (such as a brick), or hit them with something small moving very fast (like a bullet shot from a gun). Then you can list a few different ways you could hurt/kill someone, because the force applied to the object would be great either from the higher mass or higher acceleration...

Lol thanks. But I need to make some sort of device or something to demonstrate my case. I don't think they'll allow a gun in the classroom.
• Jun 18th 2013, 11:58 AM
dokrbb
Re: Idea for "science fair" project?
Quote:

Originally Posted by Paze
Good idea.

Newton's first law: All objects in motion, stay in motion (at the exact same velocity/acceleration) unless a force acts on them. Same applies to an object in rest.

Take a pendulum and put on the ground(on the floor) in resting position

Quote:

Originally Posted by Paze
Newton's second law: F=MA. The force of an object can be described as its mass times its acceleration.

Apply a force on it

Quote:

Originally Posted by Paze
Newton's third law: Any action has an identical reaction. Any force applied on an object has an identical force in the opposite direction.

After that show how the pendulum applied the same force on your hand... ;)
• Jun 18th 2013, 07:01 PM
Prove It
Re: Idea for "science fair" project?
Quote:

Originally Posted by Paze
Lol thanks. But I need to make some sort of device or something to demonstrate my case. I don't think they'll allow a gun in the classroom.

I wish you'd said that to start with. I thought you could actually WRITE some things, provide diagrams etc...
• Jun 19th 2013, 07:46 AM
Paze
Re: Idea for "science fair" project?
Quote:

Originally Posted by Prove It
I wish you'd said that to start with. I thought you could actually WRITE some things, provide diagrams etc...

I'm to do both :)
• Jun 23rd 2013, 08:46 AM
Paze
Re: Idea for "science fair" project?
I ended up swinging a bucket...It's not such a bad experiment, really.