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Worksheetsmiscellaneous
Total questions: 25
Worksheet time: 10mins
Solar panel converts mechanical energy into solar energy
true
false
The positive electrode in a simple cell is
zinc plate
carbon plate
copper plate
both 1st and 2nd
1. The electrolyte in a dry cell is
ammonium chloride plate
dilute sulphuric acid
copper plate
ammonium chloride paste
4.5 g into kilogram
0.45 kilogram
45 kilogram
0.045 kilogram
0.0045 kilogram
58 years into decades
5.08 decades
580 decades
5.8 decades
0.58 decades
The mass of a moving bus is 4 kg and its velocity is 20 m/s. What is its kinetic energy?
800 J
8100 J
8000 J
0.008 J
Hydroelectricity converts mechanical energy into electrical energy
true
false
The components of blood can be separated by
(a)
The components of colours in ink is separated by
chromatography
centrifugation
distillation
sedimentation and decantation
(a) is the process in which evaporation and condensation goes on side by side.
The negative electrode used in a simple cell is
zinc plate
copper plate
carbon plate
none
The chemical symbol of iron is (a)
Be is the chemical symbol of (a)
Hg is the chemical symbol of (a)
Ag is the chemical symbol of (a)
Sn is the chemical symbol of (a)
C is the chemical symbol of (a)
Non metals are hard and malleable.
true
false
Metals are ductile.
true
false
Na and K are soft metals.
true
false
Tungsten is the hardest metal.
true
false
The hardest substance known is (a)
iron+sand can be separated by (a)
Formula to find potential energy is (a)
A body of mass 10 kg is placed at a height of 60 m from the ground. What is the potential energy?
5000 J
5080 J
500 J
5880 J
