If you missed today:
1. Is It Possible? (video) Iron Man a reality now
2. Handed out the objective sheet, with the homework for this unit on the back.
3. Did a demonstration showing that the time it takes a item to fall is not affected by having a horizontal velocity. Now we have a Fab Ten as V x = S x / t and Vy = Sy/t
4. The BullsEye Quickie Lab will have to be made up in the back resource area. The notes are below AND this same lab is done for the Semester Exam (only with hot wheel cars and a bowl instead of a bullseye. Great videos below.
Quickie Lab with no writeup unless you miss the Bull's Eye...what you hit is what you get.
Procedure:
1. Measure the height of the table and use Fab Five #4 to calculate the time it would take for an object to fall straight down from that height:
s = (1/2) a t^2 where a = g = 9.8 m/s/s and s = the height of the table
so solve for t and plug in data and get the time the object is in the air.
s = (1/2) a t^2 where a = g = 9.8 m/s/s and s = the height of the table
so solve for t and plug in data and get the time the object is in the air.
2. Time with the stop watch a horizontal distance across the table (do several and get average in head)
Then use Fab Five #1 to solve for your horizontal velocity.
so v = s/t where s is the distance you measured with your stop watch and t is the time on your stop watch.
Then use Fab Five #1 to solve for your horizontal velocity.
so v = s/t where s is the distance you measured with your stop watch and t is the time on your stop watch.
3. Now use Fab Five # 1 again only solve it for the horizontal distance s you have to place the bulls eye
so if v = s/t then s = v times t where v is in step 2 and t is in step 1 above.
4. Finally drop you plumb bob from where the object flew off the table so you can find the spot on the floor to measure from and measure step 3 from that spot.
Think about the left and right if necessary and any friction that may have to be considered.
Set target at spot and call teacher over.
One does not have to wish you good luck as you just need to TRUST THE PHYSICS and your ability to use it correctly.
so if v = s/t then s = v times t where v is in step 2 and t is in step 1 above.
4. Finally drop you plumb bob from where the object flew off the table so you can find the spot on the floor to measure from and measure step 3 from that spot.
Think about the left and right if necessary and any friction that may have to be considered.
Set target at spot and call teacher over.
One does not have to wish you good luck as you just need to TRUST THE PHYSICS and your ability to use it correctly.
Period 1 Smart Board Notes 2013 Note the 4th video of Dakota & Brad showing why the Bull's Eye Lab works. Basically the a bullet shot out of a gun horizontally will hit the ground at the same instance that a bullet dropped at the same height does.
Bull's Eye Lab Pd. 1 Room 2340
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Bull's Eye Lab Pd. 1 Room 2342
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Neale and Conner show how it is done.
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Dakota & Brad Demo why the lab works.
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Heidi shows correct use of Plumb Bob
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Charity enjoying Physics 3rd period
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Anna Lisa & Brice 7th pd. Rm. 2342
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8th Period Rm. 2340 Bull's Eye Lab
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