Question

B.Fill in the blanks
1. A _____ pulley is used to change the direction of the force. (fixed ,movable)
2. _______ pulley is used to draw water from wells. (Single fixed/Single movable)
3. The less the length of a slope, the ______
is the mechanical advantage. (less/more)
4. The use of a wheel and axle arrangement ______
the friction. (reduces increases)
5. A ______ is an inclined plane wound around a rod with a pointed tip. (screw/pulley)

6. A ______ has two or more inclined planes that together form a sharp and pointed
edge.
(wedge/wheel and axle)
7. An axe is an example of a ______
(wedge/pulley)
8. Use a good quality machine oil to lubricate the moving parts of a machine in order to reduce ______
(friction/mechanical advantage)​

Answer 1

Answer:

1) movable

2) single movable

3)more

4) decreases

5)screw

6)wheel and axle

7) wedge

8) friction

Explanation:

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Answer 2

Explanation:

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1) movable

2) single movable

3)more

4) decreases

5)screw

6)wheel and axle

7) wedge

8) friction