GS One‑Liners
high‑yield facts · smart revision
5107
facts
5107
results
Latest facts first
| # | Question & Answer |
|---|---|
| 4176 |
What is bulk modulus?
-
Ratio of volumetric stress to volumetric strain
|
| 4177 |
What is Young’s Modulus?
-
Ratio of stress to strain in linear elasticity, Y = stress/strain
|
| 4178 |
What is strain?
-
Deformation per unit length caused by applied stress, ε = ΔL/L
|
| 4179 |
What is stress?
-
Force applied per unit area, σ = F/A
|
| 4180 |
What is elasticity?
-
Ability of a body to regain its original shape after removing the deforming force
|
| 4181 |
What is viscosity?
-
Resistance of a fluid to flow
|
| 4182 |
What is capillarity?
-
Rise or fall of a liquid in a narrow tube due to surface tension
|
| 4183 |
What is surface tension?
-
Force acting along the surface of a liquid, causing it to behave like a stretched membrane
|
| 4184 |
What is buoyancy?
-
Upward force exerted by a fluid on a body submerged or floating in it
|
| 4185 |
What is Archimedes’ Principle?
-
A body immersed in a fluid experiences an upward buoyant force equal to the weight of the fluid displaced
|
| 4186 |
What is Pascal’s Law?
-
Pressure applied to a confined fluid is transmitted undiminished in all directions
|
| 4187 |
What is pressure?
-
Force applied per unit area, P = F/A
|
| 4188 |
What is relative density?
-
Ratio of the density of a substance to the density of a reference substance (usually water)
|
| 4189 |
How is density defined?
-
Mass per unit volume, ρ = m/V
|
| 4190 |
What is Bose-Einstein Condensate (BEC)?
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State of matter at near absolute zero temperature where particles occupy the same quantum state
|
| 4191 |
What is plasma?
-
Ionized gas with free electrons and positive ions, found in stars and neon lights
|
| 4192 |
What is the main characteristic of a gas?
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No definite shape or volume; expands to fill the container
|
| 4193 |
What is the main characteristic of a liquid?
-
Definite volume but takes the shape of its container
|
| 4194 |
What is the main characteristic of a solid?
-
Definite shape and volume
|
| 4195 |
What are the five states of matter?
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Solid, Liquid, Gas, Plasma, Bose-Einstein Condensate
|
| 4196 |
What is the relation between force, displacement, and work in machines?
-
Work = Force × Displacement in the direction of force
|
| 4197 |
How does a pulley system reduce effort?
-
By distributing the load across multiple ropes or wheels
|
| 4198 |
What is the difference between speed and velocity in context of machines?
-
Velocity considers direction, while speed is only magnitude; important for moving loads efficiently
|
| 4199 |
How does an inclined plane reduce effort?
-
By increasing the distance over which the force is applied
|
| 4200 |
What is a compound machine?
-
A machine made up of two or more simple machines working together
|