Please select a subject first
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Write scientific reason.
When we drop a feather and a stone at the same time from a height the stone reach the earth faster than a feather.
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Write scientific reason.
The value of gravitational acceleration (g) is taken to be -g when studying the motion of an object thrown upwards in a straight line.
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Write scientific reason.
The metallic character of elements increases while going down the groups.
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Write scientific reason.
The non-metallic character increases while going from left to right in a period.
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Write scientific reason.
Anodization method is useful for prevention of the corrosion of the aluminium.
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Write scientific reason.
On exposure to air, silver articles turn blackish after some time.
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Write scientific reason.
Coins are made from metals and alloys.
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Define acceleration due to gravity.
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Write acceleration due to gravity value on the surface of Earth.
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The mass of planet ‘X” is four times that of the earth and its radius is double the radius of the earth. The escape velocity of a body from the earth is 11.2 × 103 m/s. Find the escape velocity of a body from the planet 'X’.
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Distinguish between Direct current and alternating current.
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Write the characteristics of ethanol.
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Write the uses of ethanol.
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Distinguish between:
Universal gravitational constant - Gravitational acceleration of earth.
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Write a short note.
Escape Velocity
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Explain concept with example/explain with the help of a balanced equation.
Corrosion
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Draw a neat labelled diagram.
Electroplating
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Draw a neat labelled diagram.
Anodizing
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Complete flow chart given below.

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