F2 Science Electricity Exercise Top Jun 2026

Understanding how components interact in different circuit layouts is the most heavily tested concept in F2 science. Series Circuit Parallel Circuit Only one single path for current. Multiple pathways/branches. Current ( ) Same everywhere ( Splits across branches ( Voltage ( ) Shared across components ( Same across each branch ( Resistance ( ) Increases as more components are added ( Decreases as more branches are added ( Component Failure If one bulb breaks, the whole circuit fails. If one bulb breaks, others keep working. Top Exercise Categories and How to Solve Them

: A device used to "open" (break) or "close" (complete) the circuit path. Part 3: Calculations & Logic

If you'd like, I can provide a set of involving Ohm's Law.

Voltage (V)=Current (I)×Resistance (R)Voltage open paren cap V close paren equals Current open paren cap I close paren cross Resistance open paren cap R close paren 4. Series vs. Parallel Circuits f2 science electricity exercise top

(a) Calculate the total effective resistance of the circuit. (b) Find the reading on the ammeter. (c) Calculate the voltage drop across Resistor A.

Electricity is a critical component of the F2 science curriculum, and it lays the groundwork for more advanced topics in later years. By studying electricity, you will gain a deeper understanding of the physical world and develop essential skills in scientific inquiry, experimentation, and problem-solving.

): The amount of electrical energy supplied per unit charge to move it between two points. It is measured in Volts (V) using a voltmeter connected in parallel. 2. Resistance and Ohm's Law Resistance ( Current ( ) Same everywhere ( Splits across

Use the words from the box:

is a material's opposition to the flow of electric current. It is measured in ohms (Ω) . A conductor (like copper) has low resistance, while an insulator (like rubber) has high resistance.

): The rate of flow of electric charge. It is measured in Amperes (A) using an ammeter connected in series. Voltage / Potential Difference ( Part 3: Calculations & Logic If you'd like,

A laptop charger supplies 19 V and a current of 2.1 A passes through the laptop. Calculate the resistance of the laptop. (Show formula, working, unit – 5 marks)

Electricity is a powerful and useful form of energy, but it can also be extremely dangerous if not handled properly. Understanding basic electrical safety is crucial to prevent accidents, injuries, and damage.

Always check if current is given in milliamperes ( ). If it is, divide by 1,000 to convert it to Amperes ( ) before calculating. Share public link