Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
21 Cards in this Set
- Front
- Back
|
Why will it be difficult to decide when to stop your experiment? How will you overcome this and how will it help? |
ask someone else |
|
|
Did you get any anomalous results? |
. yes/no . give example . because they don't fit the pattern of results |
|
|
Do your results support the hypothesis you investigated? |
. yes/no . pattern . give examples |
|
|
Described how preliminary investigations could help you decide on the best value for a CV |
. limits and range ( too high, too low/ too little , too many ) . made me choose... because this was gave manageable results |
|
|
how will you make it a fair test? |
state controlled variables and their values |
|
|
what is your hypothesis |
on CRN |
|
|
was this range of independent variables suitable? |
. yes . got a clear pattern of results |
|
|
what is your independent variable? |
colour/ wavelength of light |
|
|
risk assessment |
use CRN |
|
|
what is your hypothesis? |
use CRN |
|
|
other people repeat your investigation but get different results. why? |
. slight change in method . different value for controlled variable, e.g. higher temperature . would increase number of bubbles produced per min |
|
|
why would you compare your results with others? |
. check results for anomalies . see if any patterns reoccur . confirms reproducibility |
|
|
marks for sketch graph |
. labelled axis . line |
|
|
how would you repeat readings to obtain more accurate results? |
. repeat three times . discard anomalies . add all up and divide by three to get mean |
|
|
describe table of results |
. detailed headings . units |
|
|
case studies, to what extent? |
. give patterns . give values . mention any limitations |
|
|
range of independent variable |
. smallest to largest . unit |
|
|
are you more confident in x or y |
. anomalies . repeat readings . precision in techniques and apparatus |
|
|
do the case studies support? |
. clear yes/no . describe why . give examples |
|
|
can you explain your hypothesis? |
i think that the wavelength affects the number of bubbles produced because.. |
|
|
how do you compare two sources? |
. usefulness of each . which is most useful . why |
