IB Physics HL A 5 1 Hl Reference Frames Questions

Define inertial and non-inertial reference frames, compare observers and events, and apply frame changes to relativity, motion and force measurements.

Exam points

Define a reference frame using coordinates and clocks, and identify an inertial frame where Newton’s first law applies.
State whether an observer or object is at rest in a named frame by comparing relative velocity or position.
Compare how observers in different inertial frames describe positions, events or forces while keeping the frame and measured quantities explicit.

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This question is about time dilation and relativistic mass.

Two space stations X and Y are at rest relative to each other. The separation of X and Y as measured in their frame of reference is $1.80 \times 10^{11} \mathrm{~m}$ .

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State what is meant by a frame of reference.

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IB Physics HL A 5 1 Hl Reference Frames Questions question 1