Lakshya Education MCQs

Question: Which of the following would you use to measure the weight of a stone?
Options:
A.Measuring tape
B.Balance scale
C.Compass
D.Measuring Can
Answer: Option B
: B

Measuring tape is used to measure length. For example, the length of a cloth. Compass shows direction. Measuring Can is used to measure the volume of a liquid. The balance scale is the instrumentused for weighing an object.

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More Questions on This Topic :

Question 1. 1 kilometre = ______ metres
  1.    10
  2.    100
  3.    1000
  4.    10000
Answer: Option C
: C

The conversion factor for kilometre to metre is 1000.
When we convert a bigger unit (km) to a smaller unit (m), we multiply. Therefore, 1 km = 1×1000 = 1000 m
Question 2. Add 20 kilometres and 300 metres.
  1.    320 km
  2.    20.3 km
  3.    23 km
  4.    2.03 km
Answer: Option B
: B

We need to convert 300 m to km. To convert a smaller unit (m)to a bigger unit (km), we need to divide by the conversion factor. We know that 1000 m = 1 km 300 m = 3001000= 0.300 km. Hence, 20 km + 0.300 km = 20.300 km = 20.3 km
Question 3. An ant goes 3 cm forward then goes 2 cm backwards and then finally 5 cm forward. What is the final position of the ant if the initial position of the ant is shown on the scale? 

  1.    6 cm
  2.    7 cm
  3.    8 cm
  4.    9 cm
Answer: Option C
: C

Initial position of the ant = 2 cm Ant goes 3 cm forward = 2 cm + 3 cm =5 cm Ant goes 2 cm backward = 5 cm - 2 cm = 3 cm Finally, the ant goes 5 cm forward = 3 cm + 5 cm = 8 cm

The final position of the ant is 8 cm
Question 4. Find the missing quantity:

1 L = 350 mL + ______ mL
  1.    600
  2.    650
  3.    700
  4.    750
Answer: Option B
: B

We know that 1 Litre = 1000 mL 1000 mL = 350 mL + _____ mL 1000 mL - 350 mL = _____ mL
= 650 mL

1000 mL = 350 mL + 650 mL
Question 5. Subtract: 1 mg from 20 mg
  1.    19 m
  2.    19 g
  3.    19 mg
  4.    1.9 g
Answer: Option C
: C

Since the units are same, the values can be easily subtracted 20 mg - 1 mg = 19 mg

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