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Re: Simple Machines B/Compound Machines C Question Marathon
Posted: January 24th, 2014, 6:39 am
by misterstealyogirl
Re: Simple Machines B/Compound Machines C Question Marathon
Posted: January 24th, 2014, 10:26 am
by SWAnG
Thanks!
Re: Simple Machines B/Compound Machines C Question Marathon
Posted: January 25th, 2014, 7:57 pm
by chinesesushi
What are the general formulas for each of the simple machines?
Re: Simple Machines B/Compound Machines C Question Marathon
Posted: January 26th, 2014, 7:11 am
by fantasyfan
IMA of:
Pulley: number of strings supporting the mass
Lever: effort distance/load distance
Wedge: length/base width
Wheel and Axle: radius of wheel/radius of axle
Inclined Plane: Length of base/Height
Screw: Circumference/pitch
Re: Simple Machines B/Compound Machines C Question Marathon
Posted: January 26th, 2014, 9:42 am
by chinesesushi
fantasyfan wrote:IMA of:
Pulley: number of strings supporting the mass
Lever: effort distance/load distance
Wedge: length/base width
Wheel and Axle: radius of wheel/radius of axle
Inclined Plane: Length of base/Height
Screw: Circumference/pitch
Good job, except in the wedge, what do you mean by length?
Re: Simple Machines B/Compound Machines C Question Marathon
Posted: January 26th, 2014, 9:50 am
by fantasyfan
I meant the distance from the middle of the base to the tip
Re: Simple Machines B/Compound Machines C Question Marathon
Posted: January 26th, 2014, 10:56 am
by chinesesushi
fantasyfan wrote:IMA of:
Pulley: number of strings supporting the mass
Lever: effort distance/load distance
Wedge: length/base width
Wheel and Axle: radius of wheel/radius of axle
Inclined Plane: Length of base/Height
Screw: Circumference/pitch
Then I think it's right for a wedge then. However, for the inclined plane I think it's wrong, and should be length of incline over height (
http://hyperphysics.phy-astr.gsu.edu/hb ... ac.html#c1)
Re: Simple Machines B/Compound Machines C Question Marathon
Posted: January 26th, 2014, 11:02 am
by fantasyfan
Sorry, yes you are correct
Re: Simple Machines B/Compound Machines C Question Marathon
Posted: February 4th, 2014, 7:35 am
by Algorhythmic
What are some ways to increase the stability and balance of a first class lever?
Re: Simple Machines B/Compound Machines C Question Marathon
Posted: February 4th, 2014, 10:02 am
by Algorhythmic
More importantly, what can be changed to increase accuracy for calculations (much like the device portion of the competition)?