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प्रश्न
State if the following statement is true or false. Correct the statement if it is false.
There are four types of simple machines.
विकल्प
True
False
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उत्तर
False.
There are six types of simple machines.
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संबंधित प्रश्न
State whether the following statement is True or False.
A machine performs work by itself.
What do you understand by a simple machine?
Why is a machine not 100% efficient?
The mechanical advantage of an inclined place is always:
(a) less than 1
(b) equal to 1
(c) greater than 1
(d) nothing can be said
What is an ideal machine?
Fig show a system of four pulleys. The upper two pulleys are fixed and the lower two are movable.
(i) Draw a string around the pulleys. Also show the place and direction in which the effort is applied.
(ii) What is the velocity ratio of the system?
(iii) What is the mechanical advantage of the system?
(iv) What assumption do you make in arriving at your answer in part (iii)?
Can a simple machine act as a force multiplier and a speed multiplier at the same time?
Which machine will you use to do the following work? Write their type.
To hold a papad for roasting it.
Identify and mention the types of simple machines.
 |
 |
 |
| ______ | ______ | _______ |
 |
 |
 |
| ______ | ______ | ______ |
Rearrange the letters and find out the name of the tool.
R L E V E
| ______ | ______ | ______ | ______ |
