Page 40 - Physics_Form_2

Physics for Secondary Schools

FOR ONLINE READING ONLY
Rod

Conductor
to earth

Isolation
point

Earthing

Figure 1.47

Mode of action of a lightning conductor
A negatively charged cloud passing Task 1.5
overhead causes the sharp spikes of the
conductor to become positively charged Practical applications of static
electricity
by induction. The acquired charge on the
spikes is safely conducted to the ground; 1. Use the Internet, your school, or
hence, no lightning occurs, and no harm your community library to find
is caused to the building. information about the practical
applications of static electricity.
2. Research one useful effect of static

Project 1.3 electricity and one problem caused
by static electricity.

Study how lightning conductors are 3. Write a short paragraph explaining
installed on buildings around you, then your research.
develop a simple lightning conductor
for your Physics laboratory.

34
Student’s Book Form Two

Physics Form 2 Final.indd 34 25/10/2025 10:25