✦ New Age Learning 🔍
Home › Library › Science Lab - Advance 2 › Experiment 5 — Hammer and Feather

🧪 Lab 6 of 19 · Science Lab - Advance 2 · Class 9

Experiment 5 — Hammer and Feather

Try it in the interactive lab🔊 Audio

Topic: Physics · Class 9 · Gravitation: free fall, g, mass and weight

Aim: Make the hammer and the feather land at exactly the same moment .

Daily: Astronaut David Scott dropped a hammer and a falcon feather on the Moon in 1971 and they landed together, settling an argument that had run since Aristotle. Your weight would be a sixth of its value standing there.

Question: In a vacuum tube, a hammer and a feather are dropped together. What happens?

Exp: With no air resistance, all objects fall with the same acceleration g.

Question: The acceleration due to gravity near Earth is about…

Exp: On the Moon it is about 1.6 m/s².

Question: Your mass on the Moon compared with Earth is…

Exp: Mass never changes; only weight does.

Exp: Weight is a force, measured in newtons.

Question: A feather falls slowly in air because of…

Exp: Its large surface area catches the air.

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