O-LevelPhysicsWaves5054/22 · May/June 2014 · Q46 Marks
Fig. 4.1 shows part of a long rope used by a student to show a transverse wave. [Figure 4.1]
- (a)(i)On Fig. 4.1, mark the direction of movement of the student's hand,[1]
- (a)(ii)On Fig. 4.1, mark and label the wavelength λ of the wave,[1]
- (a)(iii)On Fig. 4.1, mark and label the amplitude A of the wave.[1]
- (b)Describe how the frequency of the wave is found using a stopwatch.[2]
- (c)Using the same rope, the student produces a wave of a longer wavelength than that shown in Fig. 4.1. State how the student does this.[1]
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
Mark scheme
Marking points from the official mark scheme (May/June 2014). The mark or mark type is shown in brackets.
- [B1] (a) (i) up and down clear, e.g. by double headed arrow or down
- [B1] (ii) any correct distance between consecutive points in phase
- [B1] (iii) correct distance
- [B1] (b) measure number of oscillations/count waves (passing) in a stated time or time at least one oscillation
- [B1] show how to calculate number of oscillations per second
- [B1] (c) moves (hand or rope) with slow(er) speed or rate/less frequency / less times per sec
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