CBSE 10 Science · Note
Formative Reinforcement Topics
CBSE syllabus note: Periodic Classification of Elements, Evolution, Motor, Electromagnetic Induction and Electric Generator are included for formative reinforcement/internal assessment rather than normal year-end summative testing. These should be handled as enrichment or portfolio-style practice, not as ordinary board-exam items.
Test yourself
A focused, distraction-free run through 25 multiple-choice questions. Hints if you need them; your score at the end.
Difficulty guide
The label describes the problem, not your ability.
1/5 - Foundational
Warm-up setup; checks one basic idea.
2/5 - Routine exam skill
Normal syllabus skill; usually one main rule or interpretation.
3/5 - Standard multi-step
Exam-style problem with multiple steps or a common trap.
4/5 - Hard exam skill
High-end exam problem; combines methods carefully.
5/5 - Challenge
Stretch problem beyond normal exam pressure.
Topic F.1
Periodic Classification of Elements
Formative reinforcement: Dobereiner's triads, Newlands' octaves, Mendeleev's periodic table, modern periodic table, valency and broad trends.
Topic F.2
Evolution
Formative reinforcement: inherited variation, natural selection, fossils, homologous organs, evolution by stages, human evolution and speciation.
Topic F.3
Electric Motor
Formative reinforcement: force on a current-carrying conductor, Fleming's left-hand rule and DC motor action.
Topic F.4
Electromagnetic Induction
Formative reinforcement: changing magnetic flux, induced current, galvanometer observations and Fleming's right-hand rule.
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Topic F.5
Electric Generator
Formative reinforcement: AC generator principle, slip rings, brushes and alternating output.
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