Unit Conversions & Estimation — Homi Bhabha Class 6 Physics MCQs with Solutions
Free Homi Bhabha Class 6 Physics Unit Conversions & Estimation MCQs with step-by-step solutions (10 questions). Part of Units and Measurements. Practise online on Prepizo — no login needed.
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Questions with solutions
Q1 — Unit Conversions & Estimation · easy · numerical
How many centimetres are there in 1 metre?
A. 100 ✓ Correct
B. 1000
C. 10
D. 1
Solution: 1 metre is equal to 100 centimetres.
Q2 — Unit Conversions & Estimation · easy · numerical
How many grams are there in 1 kilogram?
A. 10
B. 1000 ✓ Correct
C. 500
D. 100
Solution: 1 kilogram is equal to 1000 grams.
Q3 — Unit Conversions & Estimation · easy · numerical
How many minutes are there in 1 hour?
A. 100
B. 24
C. 30
D. 60 ✓ Correct
Solution: 1 hour is equal to 60 minutes.
Q4 — Unit Conversions & Estimation · easy · numerical
How many metres are there in 1 kilometre?
A. 10
B. 1000 ✓ Correct
C. 100
D. 60
Solution: 1 kilometre is equal to 1000 metres.
Q5 — Unit Conversions & Estimation · medium · numerical
2 metres is equal to how many centimetres?
A. 2000 cm
B. 200 cm ✓ Correct
C. 20 cm
D. 2 cm
Solution: Since 1 metre = 100 cm, 2 metres = 2 × 100 = 200 cm.
Q6 — Unit Conversions & Estimation · medium · numerical
3 kilograms is equal to how many grams?
A. 30 g
B. 30000 g
C. 3000 g ✓ Correct
D. 300 g
Solution: Since 1 kilogram = 1000 g, 3 kilograms = 3 × 1000 = 3000 g.
Q7 — Unit Conversions & Estimation · medium · numerical
How many seconds are there in 2 minutes?
A. 120 ✓ Correct
B. 100
C. 240
D. 60
Solution: Since 1 minute = 60 seconds, 2 minutes = 2 × 60 = 120 seconds.
Q8 — Unit Conversions & Estimation · medium · numerical
500 centimetres is equal to how many metres?
A. 5 m ✓ Correct
B. 500 m
C. 50 m
D. 0.5 m
Solution: Since 100 cm = 1 metre, 500 cm = 500 ÷ 100 = 5 metres.
Q9 — Unit Conversions & Estimation · hard · numerical
A bottle holds 2 litres of water. How many millilitres is that? (1 litre = 1000 mL)
A. 20 mL
B. 2000 mL ✓ Correct
C. 20000 mL
D. 200 mL
Solution: Since 1 litre = 1000 mL, 2 litres = 2 × 1000 = 2000 mL.
Q10 — Unit Conversions & Estimation · hard · theory
Which of these is the best estimate for the length of a new pencil?
A. about 15 cm ✓ Correct
B. about 15 mm
C. about 15 m
D. about 15 km
Solution: A pencil is about 15 cm long. 15 m is room-sized, 15 km is a long journey, and 15 mm is only about the width of a fingernail.