This document discusses simple machines, including wedges and screws. It defines a wedge as a double inclined plane sharpened at one end that can separate objects. The thinner the wedge, the less effort is needed to cut objects. It defines a screw as having spiral threads and pitch, and notes that screws are modified inclined planes that can lift heavy objects or fasten them together. The document provides examples and quiz questions about the characteristics and applications of wedges and screws.

1. SCIENCE 6

3. SIMPLE MACHINE
“WEDGE and
SCREW”

4. QUIZ
NO. 7

5. A HIGHEST GRADE

6. +10
+20
+30
+40
+50

7. • The _______ the wedge is, the lesser effort is
needed to cut objects.
A Shorter B Higher
C Thinner D Lower
C Thinner

8. It is one of the classes of lever wherein the fulcrum lies at one end, the Effort
is applied to the other end and the Load is in the middle.
A Second Class of Lever B Third Class of Lever
C Fourth Class of Lever D First Class of Lever
A Second Class of Lever

9. The lesser the angle of the inclined plane, the ______
the distance.
A Shorter B Higher
C Longer D Lower
C Longer

10. What is the device which has a fulcrum or a pivot point?
A Inclined Plane B Pulley
C Lever D Wedge
C Lever

11. It is one of the classes of lever wherein the fulcrum is
between the Effort and the Load or Resistance.
A Second Class of Lever B First Class of Lever
C Fourth Class of Lever D Third Class of Lever
B First Class of Lever

12. This is a flat supporting surface, tilted at an angle with one end
higher than the other.
A Wedge B Lever
C Pulley D Inclined Plane
D Inclined Plane.

13. It is one of the classes of lever wherein the Fulcrum is in one end, but the load
is at the other end, and the effort is applied in the middle.
A Second Class of Lever B Third Class of Lever
C Fist Class of Lever D Fourth Class of Lever
B Third Class of Lever

14. A ___________ is a double incline plane that is sharpened to an
end. It can be used to separate two portions of an object.
A Inclined Plane B Lever
C Pulley D Wedge
D Wedge

15. An inclined plane ____________ the effort exerted over a
distance and changes its direction.
A Lessens B Softens
C Hardens D Increase
A Lessens

16. • It is a modified inclined plane. It also used to lift heavy objects or
fasten two objects together.
A Screw B Lever
C Wedge D Inclined Plane
A Screw

17. WEDGE

18. Wedge
• A wedge is a double incline plane that is
sharpened to an end.
• It can be used to separate two portions
of an object.

19. Wedge
• The thinner the wedge is, the lesser
effort is needed to cut objects.

21. SCREW

22. Screw
The spiral ridges of a screw is
the Thread and the distance
between each thread is the
Pitch.

24. Types of Screws