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WorksheetsVIII CLASS SCIENCE DAY QUIZ
Total questions: 25
Worksheet time: 13mins
If the angle formed between plane mirror and reflected ray is 25 degree, what is the angle of incidence?
65 degree
90 degree
25 degree
50 degree
Which of the following works on the concept of multiple reflections?
Telescope
Binoculars
Kaleidoscope
Sunglasses
The amount of light entering the eye is controlled by:
eye lens
cornea
iris
ciliary muscle
Which is a closest planet to sun
Mercury
Earth
Venus
none of these
The organism containing only a single cell is called
unicellular organism
multicellular organism
organelle
all of the above
Combustion is a reaction in which a substance reacts with
hydrogen
Nitrogen
Oxygen
Chlorine
When magnesium ribbon burnt it produce
Magnesium hydroxide
Magnesium oxide
Magnesium chloride
Magnesium sulphate
Loudness of sound is measured in units of
Hertz (Hz)
Decibel (dB)
Metre (m)
Metre/second (m/s)
The loudness of sound depends on:
its amplitude.
its frequency.
its time period
its speed.
Which of the following is used in pencils?
Silicon
Charcoal
Graphite
charcoal
The outermost layer of earth is called
mantle
outer core
inner core
crust
An electroscope is a device which is used to find if an object is
charged
magnetised
hot
free of cracks
Oil, natural gas and coal are examples of
Fossil fuels
Renewable resources
Biofuels
Geothermal resources
The scale, which numbered 1-10, that measures the strength or magnitude of an earthquake.
pH scale
Richter Scale
Mercalli Scale
Hardness Scale
WHICH BIRDS ARE MIGRATES TO KOLLERU LAKE
FLEMINGO
PENGUINE
PEACOCK
VULTURE
Which materials are good conductors of electricity?
copper
wood
distil water
plastic
What is the symbol of potassium?
K
P
Po
Na
What is the symbol of aluminium?
A
AL
Al
Au
Which fuel have high calorific value?
CNG
LPG
Petrol
Hydrogen
Which device is used to measure the intensity of Earthquake?
Barometer
Sesmograph
Hydrometer
Animo meter
Example for Contact force.
Gravitational force
Magnetic force
Electrostatic force
Frictional force
Newton is the unit for....
Force
Work
Speed
Pressure
Speed of light in vaccum?
3000000 Km/s
300000 Km/s
200000 Km/s
10000 Km/s
Sound travell in....
Air
Liquids
Solids
All of the above
How many images formed when the angle between two mirrors is 60° ?
Six
Seven
Four
Five
