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प्रश्न
Name the machine to which the following belong:
Beam balance
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उत्तर
Beam balance: A lever (lever of class I).
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संबंधित प्रश्न
Name the class to which the following lever belong:
a wheelbarrow
Name the class to which the following lever belong:
a crowbar
Draw diagram to illustrate the position of fulcrum, load, and effort, of the following:
a beam balance
Name the machine to which the following belong:
Sugar tongs
In a lever, the fulcrum is at one end at a distance of 30 cm from the load and effort is at the other end at a distance of 90 cm from the load. Find :
(a) the length of load arm,
(b) the length of effort arm, and
(c) the mechanical advantage of the lever.
Tick the most appropriate answer.
A pair of scissors is an example of a/an
Answer the following in a word or two or in a sentence.
Which type of machine is used to squeeze a lemon?
What is the use of the lever if its mechanical advantage is
- more than 1,
- equal to 1, and
- less than 1?
Explain why scissors for cutting cloth may have blades longer than the handles, but shears for cutting metals have short blades and long handles.
Match the following:
| 1. | Class I lever | a. | Wheelbarrow |
| 2. | Class II lever | b. | Seesaw |
| 3. | Class III lever | c. | Axe |
| 4. | Wedge | d. | Hockey sick |
