Photo AI
The students took five results for the left hand and five results for the right hand - Edexcel - GCSE Physics - Question 6 - 2016 - Paper 1
Question 6
The students took five results for the left hand and five results for the right hand. Figure 5 shows their results. which hand the distance dropped (cm) rial 1 tri... show full transcript
Worked Solution & Example Answer:The students took five results for the left hand and five results for the right hand - Edexcel - GCSE Physics - Question 6 - 2016 - Paper 1
Step 1
Calculate the average distance dropped for the right hand.
Answer
To find the average distance dropped for the right hand, sum the distances for all trials and then divide by the number of trials:
distance dropped for right hand = 17.5 + 16.1 + 19.4 + 18.6 + 20.2 = 91.8 cm
Calculating the average:
ext{Average} = rac{91.8 ext{ cm}}{5} = 18.36 ext{ cm}
Rounding to two significant figures gives an average distance of 18 cm.
Step 2
Calculate the average time for the left hand.
Answer
Using the equation provided, we need to fill in the distance with the average distance dropped for the left hand:
The average distance for the left hand is given as 14 cm (as shown in the table).
To find the time, we rearrange the equation:
Thus,
ext{time} = rac{ ext{distance}}{g} where is the acceleration due to gravity. Assuming , we can find:
distance = 14 cm = 0.14 m
Now calculating:
ext{time} = rac{0.14 ext{ m}}{9.8 ext{ m/s}^2} = 0.0143 ext{ seconds}
Therefore, the average time for the left hand is approximately 0.014 seconds.