Half Life

AKEEM LAWAL
SKILLS: C2, C3
TOPIC: Half-Life
AIM: Investigating to determine the half-life of a radioactive isotope
QUANTITATIVE DATA:
Table 1.1 shows the heel of throws, modus operandi of rotted and number of un icky(N) of 100 cubes.
Number of throwsNumber of decayedNumber of undecayed (N)
0 0100
11585
21768
31355
4748
51038
6632
7527
8324
9420
10515
11312
12210
1337
1407
1534
1604
1713
1803
1912
2011

Sample calculation:
How to calculate the number of undecayed
The tote up number of cubes-decayed cubes is equal number of undecayed
100-15=85undecayed
QUALITATIVE DATA:
a.The number of decayed cannot be controlled hence one cannot predict what extend will be gotten when thrown.
POSSIBLE SOURCES OF ERROR:
When the cubes where poured out of the container, the cubes realize the tap and zinc edge which may have hold the number of decayed and undecayed isotopes.
When the cubes where poured out, one of the cubes was on top of other which was ignored.
Again equal amount of forces was not used in throwing out the cubes as a result it limits the number of decayed and undecayed.




Possible ways of correcting the errors:
?The experiment should be carried out on a plain table without any obstacle so accurate result would be gotten.
?When the cubes are thrown and on that point is anyone on top of each other it should be re-thrown.
? tolerable amount of force should be used for the throwing so that a more accurate result would be obtained.
Comment on the graph:
The graph shows a smooth curve start from 100 and which slowly decreases. Ad in the experiment, the cubes represents atoms radioactive substances and thereof they decrease the activity with snip. There is an inverse relationship betwixt the dependent variable and independent variable i.e an exponential sequence. As the time is zero, the activity is zero but as time increases from zero to twenty, the activity decrease with respect to...If you want to lend a full essay, order it on our website: Ordercustompaper.com



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