Check your score,class 7,ch - Physical quantities and Measurements

Class 7 Quiz: Physical Quantities and Measurements

1. What is the SI unit of density?

kg/m³ g/cm³ m/s N/m²

2. What is the formula for speed?

Distance × Time Distance ÷ Time Time ÷ Distance Distance + Time

3. Which physical quantity has the unit m²?

Volume Area Speed Force

4. Which formula is used to calculate density?

Mass ÷ Volume Mass × Volume Volume ÷ Mass Volume × Volume

5. What is the unit of speed in the SI system?

km/h m/s m²/s cm³

6. The volume of a cube with side length 5 cm is:

25 cm³ 100 cm³ 125 cm³ 10 cm³

7. What is the unit of area?

m² m³ kg/m³ m/s

8. How is the volume of a sphere calculated?

(4/3)πr² (4/3)πr³ πr²h πd

9. If mass is 10 kg and volume is 5 m³, what is density?

20 kg/m³ 5 kg/m³ 2 kg/m³ 10 kg/m³

10. Which is the correct unit for volume in the SI system?

m³ m² cm³ kg/m²