Question

*PLEASE ANSWER A, B AND C* THANK YOU!

During an investigation into muscle strength, a group of students planned to compare their bicep muscles. Each student planned to lift a variety of masses, until they found the largest mass that they could lift. The masses were 5, 10, 15, 20 and 25 kg. The students would then plot a graph of their results.
a) Suggest how the students could improve the reliability of the investigation.

b) Suggest how the students could improve the accuracy of the investigation.

c) The teacher told the students that their investigation was too dangerous. Suggest why.

Answer 1

The answer is B because they only wanted results

Answer 2

A) They could re-test the largest mass they could lift and see if the results are accurate.

B) They test it everyday and test if it is the average they can lift daily, instead of just one time or a couple times in one day.

C) They might lift to much , because they don't know how much they can lift at once. They might over lift and hurt themselves. There are many more ways they could hurt themselves , but that is one example.

Hope this helps :)