Which Way, and How Hard

You'll learnhow charged objects push and pull on each other: which way, and how hard.

Two charged objects, 3 cm apart. Do they pull or push, how hard, and what happens when a third one joins in? Twelve short steps; press Next for each one.

12 STEPS · 5 QUICK CHECKS · PULL OR PUSH · HOW STRONG · ADD THE ARROWS · v4

which way from the signs · how hard from the formula

Before you start

What you're looking at

Small charged objects. Pink with a + is positive, blue with a − is negative. The arrows are the forces they feel.

The question

Which way does each charge get pushed, and how hard?

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