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6th Grade Science Reviewer Part 14 FORCE AND MOTION

 

6th Grade Science Reviewer         Part 14        Force and Motion

Direction: Choose the letter with the best answer. Write your answer on your answer sheet.

1. Which of the following is not a simple machine?

A.     pulley

B.      sewing machines *

C.      wedge

D.     screw

2. It is a form of inclined plane that is wrapped around a central shaft.

A.     wheel and axle

B.      lever

C.      screw *

D.     pulley

3. It is a modified wheel and axle that carries a flexible rope, cord, cable, chain or belt on its rim.

A.     lever

B.      pulley *

C.      wedge

D.     screw

4. What simple machine has the same appearance with a pulley, but it has a wheel that is fixed to

    the axle?

A.     lever

B.      pulley

C.      inclined plane

D.     wheel and axle *

5. The point on which a lever rests or is supported and on which it pivots is called _____.

A.     effort arm

B.      fulcrum *

C.      resistance load

D.     resistant arm

6. Why can machines make our work easier and faster?

A.     Machines resists force.

B.      Machines conquers great force with less effort.*

C.      Machines can stand wear and tear.

D.     All of the above

7. Which machine would help a construction worker lift a heavy steel bar to the top of the

     building?

A.     fixed pulley *

B.      inclined plane

C.      lever

D.     wedge

8. Which simple machine is a double inclined plane used for cutting wood?

A.     axe

B.      pulley

C.      lever

D.     wedge *

9. Memong opened a can of biscuit with a spoon. What kind of simple machine is the spoon ?

A.     lever *

B.      inclined plane

C.      screw

D.     wedge

10. Mr. Losande bought a horse. How could he make the horse go up to the truck?

A.     use a pulley

B.      use an inclined plane *

C.      use a wedge

D.     use a lever

 

 

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