Results					
Data:					
group 1	Time (sec) for 46 gram (g) ping pong ball to fall 67.31 cm (+/-0.05cm) at 13°C (+/-0.5°C)				
	Trial	Time through First laser gate (sec) (+/- 0.0005 s)	Time through second laser gate (sec) (+/- 0.0005 s)	Time (sec) (+/- 0.0005 s)	Velocity (cm/sec) (+/- 0.074 cm/s)
	1	4.139867	4.150909	0.011042	60.95815975
	2	3.502265	3.513619	0.011354	59.28307205
	3	1.704508	1.7162	0.011692	57.56927814
	4	3.377283	3.388905	0.011622	57.91602134
	5	3.041487	3.053057	0.01157	58.17631806
	6	1.527862	1.538986	0.011124	60.50880978
	7	2.009869	2.021241	0.011372	59.18923672
	8	2.168155	2.179521	0.011366	59.22048214
	9	1.404784	1.416422	0.011638	57.83639801
	10	4.617452	4.629175	0.011723	0.574170434
	Mean	2.749353	2.7608035	0.01145	0.58784486
					
					
group 2	Time (sec) for 46 gram (g) ping pong ball to fall 67.31 cm (+/-0.05cm) at 1°C (+/-0.5°C)				
	Trial	Time through First laser gate (sec) (+/- 0.0005 s)	Time through second laser gate (sec) (+/- 0.0005 s)	Time (sec) (+/- 0.0005 s)	Velocity (cm/s) (+/- 0.074 cm/s)
	1	2.13291	2.139055	0.006145	109.5362083
	2	5.012689	5.024331	0.011642	57.81652637
	3	1.407457	1.41991	0.012453	54.05123263
	4	2.753048	2.763689	0.010641	63.25533315
	5	3.005292	3.016933	0.011641	57.821493
	6	2.752316	2.76274	0.010424	64.57214121
	7	3.210739	3.221422	0.010683	63.00664607
	8	3.194816	3.201394	0.006578	102.3259349
	9	2.269305	2.280554	0.011249	59.8364299
	10	1.563315	1.571024	0.007709	87.31352964
	Mean	2.730189	2.7401052	0.0099165	67.87677104
					
group 3	Time (sec) for 46 gram (g) ping pong ball to fall 67.31 cm (+/-0.05cm) at 5.5°C (+/-0.5°C)				
	Trial	Time through First laser gate (sec) (+/- 0.0005 s)	Time through second laser gate (sec) (+/- 0.0005 s)	Time (sec) (+/- 0.0005 s)	Velocity (cm/s) (+/- 0.074 cm/s)
	1	1.333238	1.34475	0.011512	58.46942321
	2	1.347044	1.35792	0.010876	61.88856197
	3	2.148901	2.160371	0.01147	58.68352223
	4	1.163705	1.171384	0.007679	87.65464253
	5	1.082288	1.093684	0.011396	59.06458406
	6	2.452607	2.46389	0.011283	59.65611983
	7	1.873009	1.884596	0.011587	58.09096401
	8	1.605408	1.616638	0.01123	59.93766696
	9	3.827219	3.83632	0.009101	73.95890561
	10	1.953901	1.965577	0.011676	57.64816718
	Mean	1.878732	1.889513	0.010781	63.50525576
					
group 4	Time (sec) for 46 gram (g) ping pong ball to fall 67.31 cm (+/-0.05cm) at 30°C (+/-0.5°C)				
	Trial	Time through First laser gate (sec) (+/- 0.0005 s)	Time through second laser gate (sec) (+/- 0.0005 s)	Time (sec) (+/- 0.0005 s)	Velocity (cm/s)(+/- 0.074 cm/s)
	1	1.663178	1.674069	0.010891	61.80332385
	2	2.081614	2.09309	0.011476	58.65284071
	3	1.732441	1.7435	0.011059	60.86445429
	4	3.563236	3.575005	0.011769	57.19262469
	5	2.919088	2.929261	0.010173	66.16533962
	6	4.264568	4.275455	0.010887	61.82603105
	7	6.940593	6.950792	0.010199	65.99666634
	8	2.427892	2.439552	0.01166	57.72727273
	9	1.502151	1.513561	0.01141	58.99211218
	10	6.676268	6.686707	0.010439	64.47935626
	Mean	3.3771029	3.3880992	0.0109963	61.21149841
					
group 5	Time (sec) for 46 gram (g) ping pong ball to fall 67.31 cm (+/-0.05cm) at 250°C (+/-0.5°C)				
	Trial	Time through First laser gate (sec) (+/- 0.0005 s)	Time through second laser gate (sec) (+/- 0.0005 s)	Time (sec) (+/- 0.0005 s)	Velocity (cm/s) (+/- 0.074 cm/s)
	1	11.5022556	11.670237	0.1679814	4.00699125
	2	12.487369	12.588013	0.100644	6.687929733
	3	3.727551	3.756545	0.028994	23.21514796
	4	8.245235	8.363522	0.118287	5.690397085
	5	5.595024	5.605968	0.010944	61.50402047
	6	4.740616	4.764538	0.023922	28.13727949
	7	3.299624	3.376127	0.076503	8.798347777
	8	3.272923	3.310057	0.037134	18.12624549
	9	0.679374	0.685761	0.006387	105.3859402
	10	5.112996	5.207297	0.094301	7.137782208
	Mean	5.86629676	5.9328065	0.06650974	26.86900817
					
	The Effect of Temperature (°C) (+/-0.5 °C) on Air Friction (measured by velocity) (cm/s)				
		Temperature (°C) (+/-0.5°C)	Velocity (cm/s) (+/- 0.074 cm/s)	Uncertainty	
	Frozen	1	67.8768	10.262	
	Cold	5.5	63.5053	10.262	
	Room Temp	13	58.7845	10.262	
	Hot	30	61.2115	10.262	
	On Fire	250	26.869	10.262	
					
	General forms:		Mass of Ping pong Ball 46 g		
	V= d/t	(°F  -  32)  x  5/9 = °C			
	TF-Ti=T	?y/y = ?a/a + ?b/b			
	Fd=-bv				
	"Results: According to the data, the ping pong ball at 1°C fell the fastest at 67.88 cm/s while the pingpong ball at 290°C fell the slowest at 26.87 cm/s. The median speed of the drops was 61.21 cm/s held by the ping pong ball at 30°C."