IB Physics HL S2.1 Exploring and designing Questions

SLSL HLHL

Practise IB Physics HL S2.1 by designing defensible investigations with quantified controls, uncertainty planning and evidence-based method choices.

9 questions in this syllabus scope, with question parts counted together.

Exam points & syllabus

Exam points

Explain a control through the relationship being tested: keep rod masses fixed while varying separation so a mass change does not also alter the period.
Name a specific controlled quantity for the actual apparatus, such as initial angle, bob diameter or cable length; naming equipment alone is insufficient.

Covered syllabus points

S2.1.1—Exploring S2.1.2—Designing investigations S2.1.3—Controlling variables

Exam points

For the stated pendulum test, keep a bob property or the initial angle constant; the rubric excludes apparatus names and constant gravity.
In the rod experiment, vary separation d while controlling mass m so a mass change does not confound the measured period T.
Name a specific rod-experiment control, such as release angle or cable length; bare same equipment and environmental temperature are insufficient.

[Maximum number: 1]

A student wants to verify the relation $T=2 \pi \sqrt{\frac{L}{g}}$ between the period T of a simple pendulum and the length L of the pendulum, where g is the acceleration of free fall. The student operates a stopwatch to measure one oscillation and a millimeter ruler to measure the length of the pendulum.

State, for this experiment,

one variable that must be controlled,

More syllabus points

S2.1.1—ExploringNo questions yet

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S2.1.3—Controlling variables1 question

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Question 1

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