Font size
Worksheetsscience quiz
Total questions: 15
Worksheet time: 6mins
phosphorous is a very ______________ non metal
non reactive metal
reactive metal
useless
useful
Metals are _______________ conductors of heat and ____________
good , electricity
bad , current
very good , current
which of the following statements is correct
all metals are ductile
generally , metals are ductile
all non-metals are ductile
some non metals are ductile
write the meaning of atom
An atom is the smallest constituent unit of ordinary matter that constitutes a chemical element.
An atom is the biggest constituent unit of ordinary matter that constitutes a chemical element.
atom has no meaning
none of the above
sodium + oxygen = ?
4Na + O2 =
sodium oxide 2Na2O
sodium dioxide 2Nao2
sodium hydroxide NaOH
4Fe +3o2 + xH2O = 2Fe2O3.xH2o write the full form
florine + oxygen + hydrogen + oxygen = Hypofluorous acid
iron + oxygen + water = rust
iron + carbon dioxide + water = rust
write the short form for H2O + O2 + Co2
Moist air
water + oxygen + carbon dioxide
carbon monoxide
synthetic fibers are also called
natural
artificial
man made
polymer
rayon is different from sythitic fibers because
it has a silk - like appearance
it is obtained from wood pulp
its fibers can also be woven
all of the above
meaning of force -
a push or a pull of an object
the pressure of the object
pull of an object
forces are due to an/a ______________ between 2 objects
interaction
push
pull
the strength of a force is usally expressed by ________________
magnitude
length
force / area on which it acts
the force acting on a unit area of a surface is called _________________
pressure
pull
push
the formula for pressure is ____________
area on which it acts force
force area on which it acts
area on which it acts
a process of separating the grain from chaff
winnowing
threshing
cleaning
