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🧪 Lab 8 of 19 · Science Lab - Advance 2 · Class 9

Experiment 7 — Over the Hill

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Topic: Physics · Class 9 · Work, energy, power and the law of conservation of energy

Aim: Give the cart just enough energy to clear the 8 m hill — and no more.

Daily: A roller coaster is released from the highest point and never climbs higher again. A cycle freewheeling downhill gains exactly what it loses going up, minus what friction steals.

Question: A cart is released from a height of 6 m on a frictionless track. Can it climb a later hill of 8 m?

Exp: Its energy came from the 6 m drop; conservation of energy forbids climbing higher.

Question: Potential energy is calculated as…

Exp: Energy stored by virtue of height.

Question: A body of 2 kg moving at 4 m/s has kinetic energy…

Exp: Energy is conserved, only transformed.

All activities in Science Lab - Advance 2

  1. Part 2 — Chemistry
  2. Experiment 1 — Read the Motion Graph
  3. Experiment 2 — Stop Before the Cow
  4. Experiment 3 — Force, Mass and Acceleration
  5. Experiment 4 — The Recoiling Cannon
  6. Experiment 5 — Hammer and Feather
  7. Experiment 6 — Archimedes and the Crown
  8. Experiment 7 — Over the Hill
  9. Experiment 8 — Sound the Ocean Floor
  10. Experiment 9 — From Ice to Steam
  11. Experiment 10 — Solution, Colloid or Suspension?
  12. Experiment 11 — Unmix the Ink
  13. Experiment 12 — Where Did the Mass Go?
  14. Experiment 13 — Build an Atom
  15. Experiment 14 — The Potato Osmoscope
  16. Experiment 15 — Who Does What in the Cell?
  17. Experiment 16 — Name That Tissue
  18. Experiment 17 — Beat the Pests, Keep the Grain
  19. Experiment 18 — Run a Dairy

Practise for Class 9