The Lab · Workshop 04 · Practice
Invisible Forces, Visible Effects
Five steps. About 25 minutes. Up to 7 stars. The constellation you're building is called First Pull.
The Lab · Workshop 04 · Practice
Five steps. About 25 minutes. Up to 7 stars. The constellation you're building is called First Pull.
The most important forces in the universe are the ones you cannot see. You learn them by their effects.
Gravity. Magnetism. The strong nuclear force. Electromagnetic radiation. All of them are invisible. We don't deny them — we map them by what they do to things we can see.
When you put a magnet under a piece of paper and sprinkle iron filings on top, you can't see the magnetic field. But the filings line up along the field lines, and suddenly the invisible has a shape.
By the end of this workshop you'll have predicted one invisible force at work in your room and described how you'd map it.
That's the warm-up. When you've actually read it — not skimmed — tap below.
Pick all that fit.
Click a force, then a visible effect.
Find an invisible force at work near you. Write what it is, what visible thing it acts on, and how you'd show it on paper to a younger kid who didn't believe in it.
Stuck? Use gravity. Drop a coin and a feather and time how long they take to fall. Then drop them in a tube with the air sucked out (you've seen the video). Same time. Air resistance was hiding the real force.
Name it.