F2 Science Electricity Exercise Top [best] Jun 2026

A student sets up a circuit with a dry cell, a switch, a bulb, and an ammeter, but the bulb does not light up. List three possible reasons why the bulb might not illuminate, and suggest how to fix each one. (Answers: 1. The circuit is not closed/open switch — close the switch. 2. The bulb is faulty/broken filament — replace the bulb. 3. The dry cell has no energy/is flat — replace the cell.)

A) Protons moved from the cloth to the rod. B) Electrons moved from the cloth to the rod. C) Protons moved from the rod to the cloth. D) Electrons moved from the rod to the cloth.

the effective resistance of this parallel combination. f2 science electricity exercise top

Use the words from the box:

F2 science electricity exercises typically test students in three main categories: A student sets up a circuit with a

A. Ammeter B. Voltmeter C. Ohmmeter D. Galvanometer

is the flow of electrons. It is measured in amperes (A) . Voltage (V) is the driving force that pushes current through a circuit, measured in volts (V) . Higher voltage increases the current flow if the resistance stays constant. The circuit is not closed/open switch — close the switch

— In series, total resistance is the sum of individual resistances ( ), so adding more increases the total. Section B Answers 1(a) 1(b) 1(c)

Higher temperatures generally increase resistance.

Here is a simple example: