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Which of the following are compressible? (i) Steam (ii) Oxygen (iii) Nitrogen
all of them
The forces of attraction between the molecules is strongest in which state
solid
Which of these process converts liquid to gaseous state? A) Condensation B) Evaporation C) Melting D) Freezing
B
Gas insoluble in water
Hydrogen
Why pipes burst in cold region?
water expands when freezed
Matter changes from one state to another by
heating and cooling
Which is the smallest particle of matter.
Atoms
Salt is made up of ______ and ______
sodium and chlorine
A stretched bow posses _____ energy
Potential energy
Inclined planes called ______ are provided in hospitals
Ramps
We are able to stay on the ground due to:
Gravitational force
A rolling ball gets slow down on its own because of:
frictional force
In second-class lever _______ comes in middle.
Load
Name the simple machine which is used to hold things together
screw
A simple machine consists of a small wheel with a groove around its outer edge.
pulley
A pair of tongs is an example of:
class 3
