Question

can someone plz help withworksheet

Answer 1

u r of 10th class?

Answer 2

cbse?

Answer 3

yes

Answer 4

are you able to help

Answer 5

@lall are you there

Answer 6

@inkyvoyd

Answer 7

i found out the average and the range

Answer 8

so u have a problem with uncertainty?

Answer 9

yeah

Answer 10

firstly subtract all the speed with avrage speed and take their modulus( consider their magnitude only)

Answer 11

eg.

Answer 12

what is first average?

Answer 13

332.1 m/s = av. speed

Answer 14

332.1

Answer 15

\[v _{av } -v _{1} =\Delta v _{1}\]

Answer 16

332.1-331.9 =

Answer 17

0.2 m/s

Answer 18

what is it??

Answer 19

actually it is the difference of the speed from average speed....

Answer 20

now u take the differences in each case and take their average...

Answer 21

wait which one are we doing

Answer 22

are we finding the average or uncertainty

Answer 23

uncertainity

Answer 24

it is the method to find uncertainity

Answer 25

topic of 11th class

Answer 26

so for the first be the difference of the speed from average speed.... is 0.2 right

Answer 27

ist one i hav shown so i started from 2.......

Answer 28

u hav to take modulus in each case i.e. | |
do u know what is modulus?

Answer 29

i don't

Answer 30

like in the third u got a -ve sign....so modulus is used remove to remove that -ve sign...

Answer 31

wait are you doing the range or uncertainly

Answer 32

|-0.4| =0.4 m/s

Answer 33

uncertainity

Answer 34

what is the formula for finding the uncertainty

Answer 35

so u get all those values that are the differences from mean that ar 0.2, 0.1, 0.4 , 0.1 , 0.0.....
so take average difference...

Answer 36

( 0.2+ 0.1+ 0.4 +0.1 + 0.0 ) /5 = 0.8/5

Answer 37

thus formula for uncertainity is \[v _{av}- \Delta v _{av}\]

Answer 38

do u got it?

Answer 39

sorry but i don't get that why are you putting 332.1

Answer 40

i mean in the sheet which you send me thoy

Answer 41

what is difference b/w the average speed to the observed speed int he first case....

Answer 42

332.1 is average speed

Answer 43

yes

Answer 44

range is 0.6

Answer 45

u dont need range at all to find the uncertainty

Answer 46

oh ok i am just making sure do i get the correct range

Answer 47

"the difference b/w the average speed to the observed speed "
do u get this statement?

Answer 48

tell me?

Answer 49

yes i do

Answer 50

so then u take average of that all differences....

Answer 51

that is \[\Delta v _{av}\]

Answer 52

which i get for the first is 332.1

Answer 53

the average

Answer 54

average - 331.9

Answer 55

average -332=

Answer 56

average - 332.5 =

Answer 57

average -332 =

Answer 58

how you get that average

Answer 59

average- 332.1 =

Answer 60

these are the differences from the AVERAGE VELOCITY

Answer 61

so the next AVERAGE of those DIFFERENCES.....

Answer 62

for finding the average are we adding all the number and divide that by the number of trials

Answer 63

would give u \[\Delta v _{av}\]

Answer 64

yes for normal average...

Answer 65

are u not told how to solve this wok sht in school

Answer 66

i think they do but i forget

Answer 67

these concepts are of 11th class?

Answer 68

so ar u getting the missing links...

Answer 69

for finding the range are we just doing max-min

Answer 70

yes of course

Answer 71

in ur wk sht u just have to give \[\Delta v _{av}\]

Answer 72

can you plz do we a favour and review it the last time

Answer 73

i mean the uncertainly

Answer 74

let me solve it on the sheet and i will send the photo...u will be able to see the whole procedure

Answer 75

oh yeah thnx man

Answer 76

i hav taken too many pic as it was not clear

Answer 77

ar u getting

Answer 78

one significant fig is one digit after decimal place

Answer 79

oh ok thnx a lot