Question

You and your partner will need the following materials:

different balls of various sizes and textures
measuring tape or yardstick
a blank wall
a step stool or chair
your collaborative partner, a family member, or friend to drop the balls.
@ranga

Answer 1

Procedure:

Choose a height from which all of the balls will be dropped one at a time.
Vertically along the blank wall, set up the measuring tape and step stool or chair.
Have a family member or friend stand on a step stool and drop one of the balls from the chosen height. Drop the ball close enough to the measuring tape to be able to record height, but not touch the tape.
Face the measuring tape, opposite the ball’s starting point from about 7 or 8 feet high. As the ball falls, measure the height the ball reaches after each bounce for four consecutive bounces. (You may need to repeat the process to ensure that your measurements are accurate. You may choose to video each drop to assure accuracy.)
Write the height of each bounce, beginning with the height from which the ball originally fell, in the chart below:
Ball 1 Description Ball 2 Description
Height 1
(starting point)
Height 2
Height 3
Height 4
Height 5
Repeat the process with each ball. Be sure that each ball is dropped from the same original height.
Using complete sentences, answer the following questions:
What is the average common ratio between the successive height values of ball 1? Ball 2? Experimental errors may cause common ratios to have some variances within the data for one ball. Use the average common ratio.
How does the size of the ball affect the height the ball bounces? Does the size have any effect on the common ratio?
If ball 1 were dropped from a different height, would the common ratio be different? Explain your reasoning.
What is the height of each ball on the fifth bounce (i.e., Height 6)? Use the geometric sequence formula, an = a1rn – 1 and show your work.
What is the total distance of the height each ball has traveled in the first five heights? Use the geometric series formula, Sn = the quantity of a sub 1 minus a sub 1 times r to the n power, all over 1 minus r and show your work.

Answer 2

@shamil98 can you help me?

Answer 3

@dan815

Answer 4

is this your science lab homeworK??/

Answer 5

no math hw

Answer 6

can you help @Isaiah.Feynman

Answer 7

o_O

Answer 8

They want you to actually carry out the experiment and record the numbers.

Answer 9

can you do the experment for me I don't have any balls at home at the moment

Answer 10

You can just use a physics equation to simulate the dropping of balls from different heights

Answer 11

http://www.physicsforums.com/showthread.php?t=403229

Answer 12

but how do I do that without any balls?

Answer 13

It isn't hard to do the math

Answer 14

at least if you know how to do basic algebra

Answer 15

also in that equation g is the gravity of earth constant,
g = 9.8m/s^2
the units are in acceleration

Answer 16

Here they want measurements in feet and so g will be in ft/sec^2.

Answer 17

You can convert 9.8 m/sec^2 to ft/sec^2 which is 32.