CTET · Chapter Test
Moving Things, People & Ideas (VI–VIII) — 25-Question Test
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Key Concepts — Quick Reference
This chapter
Motion & Speed
| Speed | Speed = Distance ÷ Time (SI unit: m/s; also km/h) |
|---|---|
| Distance | Distance = Speed × Time |
| Time | Time = Distance ÷ Speed |
| Unit conversion | 1 m/s = 3.6 km/h ; 1 km/h = (5/18) m/s |
Force, Pressure & Friction
| Net force (same line) | Same direction → add ; opposite directions → subtract |
|---|---|
| Pressure | Pressure = Force ÷ Area (SI unit: pascal, Pa = N/m²) |
| Pressure rule | Smaller area → larger pressure for the same force |
| Friction | Always opposes motion ; static > sliding > rolling friction |