IB Physics SL A.3.2 Work as energy transfer
Practise linking work to energy transfer, using force and displacement to decide when work is done and when it is zero.
- Syllabus
- First assessment 2025
- Objective
- —
- Level
- SL
Exam points
- compare force and displacement directions to decide if work is zero, for example orbital motion with a 90° angle
- apply W = Fs cos θ or energy changes to find dissipated energy, then check the answer in J or base SI units
- explain energy transfer chains where work leads to new stores, such as wind driving a turbine and generator
A.3.2—Work as energy transfer question 1
[Maximum number: 2]
This question is in two parts. Part 1 is about the motion of a ship. Part 2 is about melting ice.
Outline the meaning of work.
work done = force × distance moved;
(distance moved) in direction of force;
or
energy transferred;
from one location to another;
or
work done =Fscosθ;
with each symbol defined;
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