 |
| CBSE Class 10th Science MCQs with Answers in english |
1 What is measured by mole?
[A]Quantity of matter
[B] amount of light
[C] current flow
[D] magnetic field
ANS :
2 What changes in energy occur in the process of photosynthesis??
[A] from chemical energy to Thermal energy
[B] from mechanical power to electrical power
[C] from Thermal energy to magnetic energy
[D] from light energy to chemical energy
ANS :
3 What is the mass of 1.5 mole of carbon dioxide molecule?
[A] 66grams
[B] 33 grams
[C] 45 grams
[D] 42 grams
ANS :
4 Do action and reaction forces work together?
[A] On the same side
[B] On the same object
[C] Along different lines
[D] On two different objects
ANS :
5 On an object moving at a uniform speed?
[A] A net zero force acts
[B] A net force acts
[C] A smooth acceleration action
[D] None
ANS :
6 What energy is generated from heat energy in a steam engine?
[A] Static energy and kinetic energy
[B] Mechanical energy
[C] Noise and kinetic energy
[D] Moving energy
ANS :
7 What is a chronometer?
[A] Length measurment instrument
[B] Clock
[C] Distance measurment instrument
[D] Greenwich time clock
ANS :
8 What is the unit of cube?
[A] Steradian
[B] Radian
[C] Degree
[D] Stadium
ANS :
9 What happens when a hydrogen bomb explodes?
[A] Nuclear dissociation
[B] Atomic synthesis
[C] Atomic dissociation
[D] Atomic explosion
ANS :
10 What is the density level?
[A] ML-2
[B] ML-3
[C] ML2
[D] ML3
ANS :
