Domain: Engineering — Energy Engineering
Target concept: Energy Storage Technology

Video generation prompt: Three identical lithium batteries are connected to three identical light bulbs, respectively. The three battery-light bulb circuits are placed in environments of 0°C, 25°C, and 40°C, from left to right. A fixed camera records the entire process from bright to complete extinction, and the lighting durations of the three circuits are compared.

Evaluation guide:
(i) Target concept: Temperature-dependent electrochemical discharge kinetics in lithium-ion batteries affecting circuit runtime.
Minimum mechanism: Lithium battery voltage decay under load must be accelerated at low temperature and decelerated at elevated temperature, producing differential bulb extinction timing under identical resistive load.
(ii)Storyline: [t=0] All three bulbs ignite simultaneously and appear equally bright; [t=early] left bulb begins gradual luminance reduction while center/right remain fully lit; [t=mid] left bulb fully extinguished, center bulb visibly dimming, right bulb still fully lit; [t=late] center bulb fully extinguished, right bulb still lit and gradually dimming; [t=end] right bulb fully extinguished. Entire sequence observed from fixed frontal viewpoint capturing all three circuits side-by-side without occlusion, motion, or edit.

Manual:
Experimental Procedure
1. Place three identical lithium batteries, each connected to an identical light bulb via visible wires, in three side-by-side circuits.
2. Position circuits left-to-right in environments labeled 0°C, 25°C, and 40°C (e.g., ice pack, ambient table, warm air stream).
3. Simultaneously activate all circuits; record continuously with fixed front-facing camera.
Observation of Experimental Phenomena
All bulbs illuminate at t=0. Left bulb extinguishes first, center second, right last. Extinction is complete and irreversible per bulb; no flickering or relighting.
Summary of Experimental Principles
Lithium battery capacity and discharge rate decrease at low temperature (0°C) due to slowed ion kinetics, increasing internal resistance. At 25°C (room temp), performance is nominal. At 40°C, capacity is slightly higher and internal resistance lower, extending usable runtime — resulting in longest lighting duration.

Prompt Grounding rubric:
level_1: Fewer than three battery-and-bulb circuits are shown, or the three bulbs and batteries are not visibly identical to one another, or the three circuits are never shown positioned next to each other within a single frame, or none of the three temperature environments (0°C, 25°C, 40°C; e.g., cold, room, warm cues) is identifiable, or the camera view is not fixed (e.g., continuous handheld panning or zooming), making any duration comparison impossible.
level_2: Three circuits are shown, but at least one pair of bulbs or batteries looks visibly different in size, shape, or color from the others, or the three circuits are not captured together in one continuous frame, or fewer than two of the three temperature environments carry any legible cue (label, ice/frost, steam/warm-haze, thermometer, etc.), or the left-to-right order of the three temperatures is unclear or mislabeled.
level_3: Three visually identical battery-bulb circuits are arranged next to each other in a single fixed shot; each of the three positions carries a legible thermal cue consistent with left = 0°C (cold cue), center = 25°C (room-ambient cue), right = 40°C (warm cue); all three bulbs are lit at the start of the recording.
level_4: Everything required for score 3 holds, and in addition the recording runs continuously and without cuts from the moment all three bulbs are lit until every bulb has gone dark, no circuit is ever blocked from view, cropped out, or otherwise hidden during that time, and the three thermal cues stay visible and distinguishable from one another throughout the recording, not just in the opening frame.
level_5: Everything required for score 4 holds, and in addition all three bulbs are confirmed lit together in the very first frame (no staggered start), the moment each individual bulb goes fully dark is clearly visible on screen rather than implied by a cut or fade, and no bulb flickers back on or shows ambiguous on/off blinking that would make its exact extinguishing moment hard to pinpoint.

Scientific and Causal Correctness rubric:
level_1: All three bulbs stay lit for the same duration and go dark together regardless of their temperature environment, or the extinguishing order directly contradicts temperature (e.g., the 40°C bulb goes dark first while the 0°C bulb lasts longest), or there is no visible connection at all between a circuit's temperature environment and how long its bulb stays lit.
level_2: The three bulbs go dark at different times, but not in the order temperature predicts (e.g., the 25°C bulb outlasts the 40°C bulb, or the ordering looks inconsistent/reversed for at least one pair), or two bulbs appear to extinguish at essentially the same moment when a clear temperature-driven gap should be visible, or a bulb's brightness jumps or shifts color in a way unrelated to a gradual dimming process.
level_3: The three bulbs go dark at three visibly distinct times in the order predicted by temperature: the 0°C bulb extinguishes first, the 25°C bulb next, and the 40°C bulb last; each bulb shows a steady warm glow while lit, with no color-shifting or pulsing.
level_4: Everything required for score 3 holds, and in addition once a bulb goes dark it stays dark for the rest of the video (no bulb relights), each bulb's brightness fades gradually rather than cutting off instantly or stepping down in visible jumps, and the 40°C bulb is visibly the only one still lit for a period after both the 0°C and 25°C bulbs have gone dark.
level_5: Everything required for score 4 holds, and in addition the gaps between the three extinguishing times read as three clearly separate events rather than a near-simultaneous cluster (the 0°C bulb is fully dark well before the 25°C bulb even begins visibly dimming, and likewise between the 25°C and 40°C bulbs), and the first/second/third order of extinguishing never looks reversed or ambiguous at any point.

Spatiotemporal Consistency rubric:
level_1: A battery or bulb disappears from the shot and reappears, or a bulb's brightness or on/off state changes instantaneously with no visible transition, or the camera cuts, jumps, or rotates abruptly mid-recording, or the background shifts abruptly, or the whole scene's lighting flashes or changes tone suddenly.
level_2: A bulb switches from lit to dark (or the reverse) with no visible fading or dimming transition, or a battery or bulb's position or angle changes between frames with nothing shown causing it, or the fixed camera view is broken by an unexplained zoom, pan, or tilt during the recording.
level_3: All three circuits stay in the same relative position and orientation throughout the video; no circuit appears, disappears, or breaks apart; each bulb's light looks physically connected to its own battery through the visible wiring rather than floating on its own; the footage reads as one unbroken take with no visible mid-recording cuts.
level_4: Everything required for score 3 holds, and in addition none of the wires, batteries, or bulbs float, detach, or hover unsupported at any point, there is no frame-to-frame flicker or strobing anywhere in the scene that would break the sense of continuous recording, and none of the three circuits visibly warps or distorts due to a lens artifact.
level_5: Everything required for score 4 holds, and in addition all motion, including the brightness fades, looks smooth rather than juddering or duplicating frames, the three circuits' spacing and alignment relative to one another stays the same from the first frame to the last, and there is no visible seam, jump cut, or perspective shift suggesting the footage was stitched from separate shots.