1. I am an enemy because I support your fall but oppose your rise. Who am I?
2.United we stand in vacuum, Divided we fall in glass. Who are we?
3.In the presence of nothing but not something, I am flat. Who am I?
4.Without me, nothing can start or stop moving. Identify me.
5.I never decrease globally but may decrease locally.
6.I decide who should sink or float. Who am I?
7.I can pass through quartz but not through glass. Who am I?
8.I can pass through pieces of paper but not through metal foils. Who am I?
9.I am observed in light but not in sound. Who am I?
10.Millions of me pass through you every second but you do not realise it. Who am I?
Answers
The answer of the given questions are :
1. I am an enemy because I support your fall but oppose your rise.
=> Gravity
2. United we stand in vacuum, Divided we fall in glass.
=> Speed with different wavelengths
3. In the presence of nothing but not something, I am flat.
=> Black hole
4. Without me, nothing can start or stop moving.
=> Friction
5. I never decrease globally but may decrease locally.
=> Entropy
6. I decide who should sink or float.
=> Density
7. I can pass through quartz but not through glass.
=> UV Light
8. I can pass through pieces of paper but not through metal foils.
=> Charged particles
9. I am observed in light but not in sound.
=> Polarization
10. Millions of me pass through you every second but you do not realise it.
=> Neutrinos
1. I am an enemy because I support your fall but oppose your rise.
I am gravity.
The gravity is an attractive force from the core of the earth.
2. United we stand in vacuum, Divided we fall in glass.
I am visible light.
The light produced by the sun. The light produced by the sun is visible light which scatters into majorly seven colors when passes through prism.
3. In the presence of nothing but not something, I am flat.
I am black hole.
It is a region of spacetime which has very strong gravity that absorbs everything around it.
4. Without me, nothing can start or stop moving.
I an friction.
It is a force between two surfaces. It always works in opposite direction to the direction of the motion.
5. I never decrease globally but may decrease locally.
I am entropy.
It is a thermodynamic quantities. It gives the degree of disorder or randomness in the system.
6. I decide who should sink or float.
I am buoyancy.
It is an upward force that is excreted by the fluid on the objects floating on it. An object floats when the density of the fluid is greater than density of the object and vice-versa.
7. I can pass through quartz but not through glass.
I am ultraviolet rays.
It is electromagnetic waves that have the wavelength from 10 nm to 400 nm. When it falls on the skin, it produces skin problems and cancer.
8. I can pass through pieces of paper but not through metal foils.
I am charged particles.
These are particles that have electrical property where it has one deficit or extra electrons.
9. I am observed in light but not in sound.
I am lightning.
During thunder & lightning. The lightning comes first with light and thunder comes later with sound.
10. Millions of me pass through you every second but you do not realize it.
I am neutrinos.
It is a subatomic particle. It has very less mass and no electrical charge.