Please select a subject first
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State if the following statement is true or false. Correct the statement if it is false.
A screw is a special case of an inclined plane.
Concept: undefined >> undefined
Give a reason for the following.
Magnets must be bandied with care?
Concept: undefined >> undefined
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Answer the following in detail.
What is an inclined plane?
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Answer the following in a word or two or in a sentence.
Name an instrument generally used to find the time interval between two events accurately.
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Answer the following in a word or two or in a sentence.
If the alarm of a digital clock is set at 05:50, at what time will the alarm ring during the day?
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What is a wedge? Give two examples.
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Name the machine to which the following belong:
Needle
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State three ways of demagnetising a magnet.
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Tick the most appropriate answer.
A machine made up of two or more sloping surface is known as a
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State if the following statement is true or false. Correct the statement if it is false.
A sewing needle is a wedge type simple machine.
Concept: undefined >> undefined
Answer the following in a word or two or in a sentence.
Name the type of machine made by putting two inclined planes together.
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Answer the following in detail.
What is a wedge? Explain the principle on which it works by giving suitable examples.
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Give a reason for the following.
The front end of a boat is shaped like a wedge.
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Fill in the blank:
°C is the unit of ......................
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Name the one common unit of temperature. Write their symbols also.
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What is a screw? Give two examples.
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State if the following statement is true or false. Correct the statement if it is false.
The effort required to insert a screw into wood is less than that needed to insert a nail into wood.
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Answer the following in short.
What is the function of a screw? Give anyone the use of a screw.
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Write true or false.
S.I. unit of temperature is Fahrenheit.
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Fill in the blank:
The zero mark in Celsius thermometer is the melting point of ...........
Concept: undefined >> undefined
