IB Physics HL A 3 8 Mechanical Energy Transformations Questions

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

Exam points

Trace transformations among translational kinetic, near-Earth gravitational potential and elastic potential energy stores.
Use conservation of mechanical energy to calculate speeds, heights or elastic-energy changes and identify dissipative transfers where present.

[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

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

(a)

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

[ 2 ]

(i)

between A and B .

[ 1 ]

(ii)

between B and C .

[ 1 ]

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IB Physics HL A 3 8 Mechanical Energy Transformations Questions question 1

Question (a)

Question (i)

Question (ii)