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1.7 Energy, work and power

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Question 430

A mass is suspended from a ceiling by a vertical spring. The mass is pushed upwards from its equilibrium position, compressing the spring. The mass is held in this position and then released.

Which energy changes occur during the initial movement of the mass immediately after it is released?

A

Gravitational potential energy store decreases; Kinetic energy store increases; Elastic potential energy store decreases

B

Gravitational potential energy store decreases; Kinetic energy store decreases; Elastic potential energy store increases

C

Gravitational potential energy store increases; Kinetic energy store increases; Elastic potential energy store decreases

D

Gravitational potential energy store increases; Kinetic energy store decreases; Elastic potential energy store increases

Markscheme

1.7 Energy, work and power Questions

  1. IGCSE
  2. /Physics
  3. /1.7 Energy, work and power

533 exam-style questions on CIE IGCSE Physics 1.7 Energy, work and power, covering 1.7.1a Energy stores and energy transfers, 1.7.1b Conservation of energy, 1.7.1c Kinetic and gravitational potential energy, 1.7.2 Work done, 1.7.3 Energy resources, 1.7.3a Energy resources and electricity generation, 1.7.3b Nuclear fusion as an energy source, 1.7.3c Efficiency of energy transfer, and 1.7.4 Power. Each one has a worked solution and a mark scheme showing where the marks go.

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