exp. (1 Viewer)

[~GrOoVy~]

hey,
Has anyone here performed the experiment of measuring acceleration due to gravity by using Atwood's machine i.e. the pulley thing.

If so can you plz tell me the procedures that need to be employed to reduce errors, the variables involved and any hazards in the experimental procedure.

thanks in advance

grrooovvvyyy

 

[Numero Uno]

hey,
Has anyone here performed the experiment of measuring acceleration due to gravity by using Atwood's machine i.e. the pulley thing.

If so can you plz tell me the procedures that need to be employed to reduce errors, the variables involved and any hazards in the experimental procedure.

thanks in advance

grrooovvvyyy

well to reduce errors
you can make the string length longer .. so ur timing can be more accurate
reduce the friction between the string and pulley

and for safety hazards .. ?? i dun think there is any real safety hazards
but u can probably get away, with making up some bs ??
eg .. make sure u wear safety glasses ... [Insert bs here]

yeah.. i did this experiment a while bak so this is off the top of my head

 

[Dash]

Make sure you repeat the experiment a number of times...
Make sure pulleys are properly *lubed* so that there is no resistance to the turn motion...
Possibly string length and masses are sum variables...

 

[Xayma]

Also the surface area of the mass is a variable, well the surface area mass ratio. The larger the surface area the greater the drag. The drag is then opposing the force (higher mass, higher force while drag remains "constant").

 

[~GrOoVy~]

Do u guyz have a full report on this experiment?


one more thing...can you plz answer all those question above for the solid pendulum experiment.


ta
Groovy

 

[Templar]

answer all those question above for the solid pendulum experiment.

Reduce error - make sure string is longer, make swing angle less than 10 degrees, make sure it swings along one plane only.
Independant variable - length
Dependant variable - time

 

[~GrOoVy~]

Reduce error - make sure string is longer, make swing angle less than 10 degrees, make sure it swings along one plane only.
Independant variable - length
Dependant variable - time

thats the string pendulum

I want the answers for the solid irregular pendulum

but hey thanks anywayz

groovy

 

[~GrOoVy~]

One more thing

I want to know if i should write the variables, errors and hazards in the discussion
and write how to reduce the errors in the conclusion.



groovy

 

[~GrOoVy~]

and do i put all the calculations in the discussion section???

 

[TimeAndTide]

Did you also do the pendulum prac.? Becuase its kind of weird how you have to do both.

 

[~GrOoVy~]

Did you also do the pendulum prac.? Becuase its kind of weird how you have to do both.

Our teacher is making us do 3 experiments on measuring acceleration due to gravity.

so i picked
-atwood's machine
-simple pendulum
-solid pendulum (can't find any info on this one so i am thinking of doing the water experiment but don't know the proper name of this experiment.)

 

[TimeAndTide]

holy crap....three of them? Doesn't the syllabus say you only have to do one?

 

[~GrOoVy~]

holy crap....three of them? Doesn't the syllabus say you only have to do one?

Yeah, i tried telling him that but he wouldn't listen...stooopid teacher lol

 

[paki_diva]

hey...we have to do three experiments too...and i'm doing
- simple pendulum
- atwood's machine
- water drip

i considered doing solid pendulum but didn't find anything on it so i changed to water drip.