GCSE AQA Physics Forces & Elasticity: Figure 8 shows a student before

Question

Figure 8 shows a student before and during a bungee jump.

The diagram is not to scale.

In position B, the student is moving towards the river and the bungee cord is stretching.

How do the energy stores in position B compare with the energy stores in position A? Tick (✔) one box in each row.

Energy store                            Less than at A   The same as at A   More than at A
The student's gravitational potential energy             ☐            ☐                   ✔
The student's kinetic energy                           ✔             ☐                   ☐
The bungee cord's elastic potential energy    ☐             ☐                   ✔

The bungee cord behaves like a spring with a spring constant of 78.4 N/m.
At one point in the bungee jump, the extension of the bungee cord is 25 m.

Calculate the elastic potential energy stored by the bungee cord.

Use the equation:

elastic potential energy = 0.5 × spring constant × extension²

Elastic potential energy = __________________________ J

Bungee cord C will have a smaller extension than A or B for any bungee jumper.
Give the reason why.

Which bungee cord would be safest to use for a person with a large weight?
Give a reason for your answer.

Bungee cord _______________
Reason

Figure 8 shows a student before and during a bungee jump - AQA - GCSE Physics - Question 6 - 2023 - Paper 1

Worked Solution & Example Answer:Figure 8 shows a student before and during a bungee jump - AQA - GCSE Physics - Question 6 - 2023 - Paper 1

Energy store How do the energy stores in position B compare with the energy stores in position A?

Calculate the elastic potential energy stored by the bungee cord.

Give the reason why.

Which bungee cord would be safest to use for a person with a large weight? Give a reason for your answer.

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