Physics Worksheet

📏 Physical Quantities

Chapter: Mechanics · Level ★★☆ · Time: 30 min

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After this worksheet you can

Understand: Physical QuantityUnderstand: Fundamental (Base) QuantitiesUnderstand: Derived QuantitiesUnderstand: Magnitude and Unit

🧠 Section A · Concept Check ● BEGINNER 4 × 1 = 4

1Is 'electric current' a fundamental or derived quantity?

2Is 'volume' a fundamental or derived quantity?

3Is 'acceleration' a fundamental or derived quantity?

4List the seven fundamental (base) quantities in the SI system.

🧮 Section B · Problem Solving ● INTERMEDIATE 4 × 3 = 12

5Why is dimensional analysis a useful tool in physics?

6Is 'density' a fundamental or derived quantity?

7What makes a quantity 'fundamental' rather than 'derived'?

8Is 'energy' a fundamental or derived quantity?

🚀 Section C · Challenge ● CHALLENGE 2 × 2 = 4

9Why can't you add a quantity in meters directly to a quantity in seconds?

10Is 'amount of substance' a fundamental or derived quantity?

💭 Reflection — the most useful thing I learned:

A ___/4 B ___/12 C ___/4 Total ___/20 Teacher's Signature Parent's Signature

✂ answer key — fold or cut before handing out

1 = Fundamental 2 = Derived (length^3) 3 = Derived (length/time^2) 4 = Length, mass, time, electric current, temperature, amount of substance, luminous intensity | 5 = It helps verify that an equation is consistent, catching errors where units on both sides don't match 6 = Derived (mass/volume) 7 = It cannot be expressed in terms of other simpler quantities 8 = Derived | 9 = They measure different physical dimensions and are not compatible for addition 10 = Fundamental