Like charges repel; opposite charges attract. 2. Electric Current and Voltage Electric Current (
Use your finger to trace the current from the positive terminal to the negative terminal to easily identify if a circuit is series or parallel.
Are you studying a specific curriculum like , PT3/UASA , or HKDSE ?
If you are a Form 2 (F2) student, you have likely reached the turning point of your science syllabus: . It is a leap from Biology and Chemistry because you cannot see electrons. You can only see their effects—light, heat, and movement. f2 science electricity exercise top
Since the bulbs are identical, they share the total voltage equally. across Bulb X.
Complete the table:
Understand the practical impact of each type. For example: Like charges repel; opposite charges attract
A student conducted an experiment to investigate the relationship between current and voltage using a constantan wire. The data collected is shown below:
C) So that switching off one appliance does not turn off the others. D) To reduce the total voltage used by the house. Answer: C Section B: Structured & Calculation Questions
If you are looking for the to ace your exams, this guide breaks down the essential concepts and practice areas you need to focus on. 1. The Fundamentals: Current, Voltage, and Resistance Are you studying a specific curriculum like ,
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
State the electrical charge of the following subatomic particles: Electron, Proton, Neutron. Answer: Electron – negative (–1 e); Proton – positive (+1 e); Neutron – neutral (0 e).