Advertisements
Advertisements
प्रश्न
Tick the most appropriate answer.
Which of the following is a Class II lever?
पर्याय
Pliers
A beam balance
A nut-cracker
A knife
Advertisements
उत्तर
A nut-cracker
APPEARS IN
संबंधित प्रश्न
Fill in the blank:
In class II levers, the load is in between fulcrum and .........
What do you mean by the mechanical advantage of a lever?
Draw diagram to illustrate the position of fulcrum, load, and effort, of the following:
a see-saw.
State three differences between the three classes of levers.
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
Give one example of a class I lever where mechanical advantage is less than 1.
Which type of lever has a mechanical advantage always more than one? Give one example. What change can be made in this lever to increase its mechanical advantage?
Classify the following into levers:
A catapult
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 |
