THINGS TO REMEMBER

Question 1

What should you do for SUVAT q’s

Answer 1

• set a direction as positive and keep it that way
• write out suvat
• mark which you know
• do X for the one you want to exclude
• do ? For the one you want to find out
• find suitable equation
• substitute numbers
• think is it sensible

Question 2

What to remember when using

I = naev

Answer 2

n is the number of electrons/ charge carriers PER METRE CUBED

Question 3

what to always put at the end of a method

Answer 3

repeat the experiment

safety measures

Question 4

what to do on uncertainty questions

Answer 4

if its +- 0.5mm for example then the absolute uncertainty which should be used for % uncertainty will be 1mm

Question 5

what to always include when writing about how to do an experiment

Answer 5

• equipment used named accurately

Question 6

which side of a cell circuit symbol is positive

Answer 6

the wide side

Question 7

what to do if mentioning calculations in method explanations

Answer 7

be very specific, rearrange the equation accordingly

Question 8

what should you mention if it speaks of intensity in relation to waves

Answer 8

remember intensity is directly proportional to amplitude ^2