MODULE 06 · UNIT 1 · ELECTROSTATICS

Solve it · Build the Solution

Put Coulomb’s law to work: sort what you know, build the solution step by step, then check it against the physics.

Problem solving

SOLVE IT · COULOMB’S LAW AND SUPERPOSITION

Build the solution, then run it.

First sort the knowns and unknowns. Then choose and order the solution blocks. Some cards and blocks contain a common mistake.

✎ Create your own problem (visual builder)

Block bank

Quantities for Step 1

Use + Known or + Unknown, or drag a card into a box. Some cards belong in neither box.

    Solution blocks for Step 2

    🔒 Sort the knowns and unknowns correctly to unlock the solution blocks.

      Your solution

      Step 1 · Knowns and unknowns

      Knowns
        Unknowns

          Step 2 · Solution steps

          Put one block per step in a valid order. Use ↑ ↓ to reorder and ✕ to return a block to the bank.

            No blocks yet.

            Run it

            Waiting for a check

            ━ Coulomb’s law (true force) ┅ The force your blocks imply

            Forces appear here after you check your solution.

            Your answers vs the physics

            CHECK

            Check your solution to compare its numbers with the physics.

            k = 8.988 × 10⁹ N·m²/C² in the engine; the problems quote 8.99 × 10⁹, which agrees to 3 significant figures. Step 1 score = quantities in the right box ÷ quantities needed; Step 2 score = correct blocks in a valid position ÷ required steps. Tries count each check. Nothing is saved or sent; report your score to your instructor if asked.