Which of the following statement is false?
A book is a non-luminous object
Music is a pleasant sound
We should blow horns unnecessarily
Force can change the shape of an object
Which is the main source of light?
Moon
Sun
Earth
Planet
Identify the force applied in the picture?
Pull
Push
Bend
Twist
We can see things only when there is
Reflection
Light
Dimension
Shadow
How are sounds produced?
By reflection
By vibration
By refraction
By radiation
Which is the man made thing used to move things ?
Water
Air
Crane
Wind
Which is an example of force changing the shape of an object?
Pulling of trolley bag
Pushing open a door
Stretching of rubber band
Hitting of foot ball
Which is a luminous living thing?
Fireflies
Crickets
Cockroaches
Houseflies
How can we avoid noise?
By talking loudly
By playing loud music
By speaking softly
By firing crackers
What are vibrations?
Fast to-and-fro movements
Fast back and forth movements
Slow back and forth movements
Slow to-and-fro movements
