Written Work No. 3
Choose the letter of the correct answer. Write your answer on the space before each
number.
_____ 1. Which of the following states the use of inclined plane?

A. It lessens the effort exerted in transporting weight over a distance and
height.
B. Lifts an object easier by changing the direction of the effort force.
C. It carries a person from a high area to low area.
D. It raises an object from a low area to high area.
_____2. Its examples are stairways and mountain roads.
A. inclined plane C. wedge
B. pulley D. lever
_____3. A knife is an example of this type of simple machine.
A. inclined plane C. wedge
B. pulley D. lever

_____4. Why do you need to use an inclined plane?
A. It lessens the time used in certain thing.
B. It lessens the effort over a distance.
C. It lessens the resistance exerted.
D. It can be used to lift cars.

_____5. In a Class 1 Lever (like a seesaw), the movement of the effort is _____.

A. opposite to the direction of the load.
B. in the same direction as the load.
C. independent of the direction of load.
D. perpendicular to the direction of the load.

_____6. When a wedge is pushed down between objects, the objects ______. .

A. press together C. also move down
B. move apart D. do not move

_____7. When using a broom to sweep a floor, your mechanical advantage will be less
than 1 and your fulcrum will be your hand at the top of the broom. This means
the broom acts as which class of lever?
A. First C. Third
B. Second D. Fourth

_____8. In using a wheel barrow to carry loads like soil and rocks, you put these at the
center of the machine. What class of lever is a wheel barrow?
A. First C. Third
B. Second D. Fourth

_____9. Denise made the table below for her science report. She needs to add a title to
the table?


A.Type Description
B.First fulcrum in middle of arm
C.Second load in middle of arm
D.Third effort force in middle of arm

Which is the best title for Denise's table?
A. How to Use a Lever
B. Three Classes of Levers
C. The Six Simple Machines
D. Real World Examples of Levers

_____10. What should you do to reduce the amount of effort needed to lift something

using a first-class lever?
A. move the fulcrum to the middle of the lever
B. move the fulcrum to the end of the lever
C. move the fulcrum closer to the effort
D. move the fulcrum closer to the load​