Questions on Length and Volume
Multiple-Choice Questions – Length and Volume
1. Which unit is commonly used to measure length in the metric system?
A) Gram
B) Liter
C) Meter
D) Second
E) Celsius
2. Which of the following is not a unit of volume?
A) Liter
B) Milliliter
C) Cubic centimeter
D) Gram
E) Cubic meter
3. How many millimeters are in one meter?
A) 10
B) 100
C) 1,000
D) 10,000
E) 100,000
4. A cube has sides of 2 cm. What is its volume?
A) 4 cm³
B) 6 cm³
C) 8 cm³
D) 12 cm³
E) 16 cm³
5. Which of these units is the smallest?
A) Kilometer
B) Meter
C) Centimeter
D) Millimeter
E) Decimeter
6. How many centimeters are in 2.5 meters?
A) 2.5
B) 25
C) 250
D) 2,500
E) 25,000
7. What is the volume of a rectangular box with dimensions 5 cm × 2 cm × 4 cm?
A) 10 cm³
B) 20 cm³
C) 40 cm³
D) 45 cm³
E) 80 cm³
8. What does "mL" stand for?
A) Milliliter
B) Meter liter
C) Medium liter
D) Mega liter
E) Micro liter
9. Which metric unit is best for measuring the volume of a soda can?
A) Liter
B) Kiloliter
C) Milliliter
D) Cubic meter
E) Nanoliter
10. Which of the following equals 1 liter?
A) 10 mL
B) 100 mL
C) 500 mL
D) 1,000 mL
E) 10,000 mL
11. Which is the correct formula to calculate the volume of a rectangular prism?
A) V = l + w + h
B) V = l × w × h
C) V = l × w / h
D) V = l² × h
E) V = π × r² × h
12. What is the length of an object measuring 0.75 meters in centimeters?
A) 0.75 cm
B) 7.5 cm
C) 75 cm
D) 750 cm
E) 7,500 cm
13. The SI base unit for length is:
A) Centimeter
B) Inch
C) Foot
D) Meter
E) Millimeter
14. Which of the following volumes is the largest?
A) 1,000 mL
B) 1.5 L
C) 900 mL
D) 0.75 L
E) 1.2 L
15. Convert 3.5 liters to milliliters.
A) 350 mL
B) 3,500 mL
C) 35 mL
D) 350,000 mL
E) 0.035 mL
16. What is the volume of a cylinder with radius 2 cm and height 10 cm?
(Use π ≈ 3.14)
A) 40 cm³
B) 62.8 cm³
C) 125.6 cm³
D) 100 cm³
E) 314 cm³
17. Which tool is commonly used to measure length?
A) Graduated cylinder
B) Thermometer
C) Ruler
D) Triple beam balance
E) Stopwatch
18. Which tool is used to measure the volume of a liquid?
A) Stopwatch
B) Thermometer
C) Balance
D) Graduated cylinder
E) Beaker tongs
19. What unit is often used to express the volume of an irregular solid by water displacement?
A) Centimeter
B) Gram
C) Liter
D) Cubic centimeter
E) Degree Celsius
20. Which of the following is equivalent to one cubic centimeter?
A) 1 mL
B) 10 mL
C) 100 mL
D) 0.1 mL
E) 0.01 mL
Answer Key with Explanations
1. C) Meter – Base unit of length in the metric system.
2. D) Gram – Gram is a unit of mass, not volume.
3. C) 1,000 – 1 meter = 1,000 millimeters.
4. C) 8 cm³ – 2 × 2 × 2 = 8.
5. D) Millimeter – Smallest among the options.
6. C) 250 – 2.5 m × 100 = 250 cm.
7. E) 80 cm³ – 5 × 2 × 4 = 40.
8. A) Milliliter – Abbreviation for milliliter.
9. C) Milliliter – Soda cans are often measured in mL.
10. D) 1,000 mL – 1 L = 1,000 mL.
11. B) V = l × w × h – Correct formula for a rectangular prism.
12. C) 75 cm – 0.75 × 100 = 75.
13. D) Meter – SI base unit for length.
14. B) 1.5 L – 1.5 L = 1,500 mL, the largest.
15. B) 3,500 mL – 3.5 × 1,000 = 3,500.
16. C) 125.6 cm³ – πr²h = 3.14 × 4 × 10 = 125.6.
17. C) Ruler – Used for measuring length.
18. D) Graduated cylinder – Most accurate tool for liquid volume.
19. D) Cubic centimeter – Displacement is measured in cm³.
20. A) 1 mL – 1 cm³ = 1 mL by definition.
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