This blog contains answers to exercises set for students. While every effort is made to ensure that the information posted is correct, mistakes may occur from time to time.
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Tuesday, February 21, 2017
Y12 Wave Questions
Maximum
of 2 marks for correctly identifying the 4 errors OR stating the 2
correct notes:
correct notes:
i.e.
errors in notes 1, 2, 3, and 6 (shown anywhere) B2
{5
or 6 or 2 or 1 notes nominated scores ZERO, 4 correct scores 2, 3 correct
scores 1}
Valid
corrections score 1 mark each: do not allow “NOT” corrections apart
from note 3
from note 3
Note
1: In longitudinal waves vibrations are parallel to wave direction
(WTTE) B1
{OR in transverse waves
vibrations are perpendicular to wave
direction (WTTE}
direction (WTTE}
Note 2 light
(or any of the em waves) can travel through a vacuum (WTTE) B1
{allow sound/longitudinal waves cannot
travel thro’ a vacuum}
Note
3: waves carry energy/disturbance (not displacement or info)
from…. (WTTE) B1
from…. (WTTE) B1
{allow “waves do not carry the medium”
and “the medium carries
the waves from…….”}
Note
6: wavelength = distance from crest to crest/trough to trough/maxthe waves from…….”}
to max (WTTE)
Monday, February 20, 2017
Wednesday, February 01, 2017
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