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IB Physics HL A.3.8 Mechanical Energy Transformations Question Bank

Practise HL energy transformations with springs, rolling bodies, generators and quantitative loss calculations in exam questions.

Syllabus
First assessment 2025
Course
Physics HL
Level
HL

Exam points

  • Combine translational, rotational, gravitational and elastic energy to solve multi-stage HL transformations.
  • Analyse transfers in springs, rolling bodies and generators, identifying losses and checking model assumptions.
  • Use conservation to calculate speed or spring energy from supplied heights, masses, speeds and loss percentages.

A.3.8—Mechanical energy transformations question 1

[Maximum number: 2]

An elastic climbing rope is tested by fixing one end of the rope to the top of a crane. The other end of the rope is connected to a block which is initially at position A. The block is released from rest. The mass of the rope is negligible.

diagram not to scale

diagram not to scale

The unextended length of the rope is 60.0 m . From position A to position B, the block falls freely.

Question (a)

(a)

For the rope and block, describe the energy changes that take place

[ 2 ]

Question (i)

(i)

between A and B .

[ 1 ]

Question (ii)

(ii)

between B and C .

[ 1 ]
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