Module 04 Reflection Journal (Module 3 and 4)

Module 3: Natural Forces Affecting the Driver
Vocabulary: Please define six (6) of the following terms in your own words. Please do not just copy and paste the definition.
1. Gravity- force pulling together all matter.
2. Inertia- a property of matter that causes it to resist changes in velocity.
3. Potential Energy- the energy that a piece of matter has because of its position or because of the arrangement of parts.
4. Kinetic Energy- force that the energy develops by an object while in motion.
5. Friction- the resistance of movement between two surfaces in contact.
6. Traction- The action of drawing or pulling a thing over a surface.
7. Centrifugal Force- the force that pulls out from the center on a body in circular motion.
8. Centripetal Force- a center-seeking force. It is directed toward the center of the curvature.
9. Deceleration- A decrease in rate of velocity.
10. Force of impact- Force created when objects meet.

Module 4: Signs, Signals & Pavement Markings
1. Explain the purpose of the following
A. The difference between solid and broken lines is:
Broken lines any color means you can pass
Solid lines any color means you can not pass
B. Yellow lines (broken or solid) indicate what type of traffic flow:
Yellow lines broken or solid separate lanes of traffic moving in different directions.
C. White lines (broken or solid) indicate what type of traffic flow:
White lines broken or solid separate lanes of traffic moving in the same direction.

2. Observe and describe the different signs in YOUR city. Give specific examples of each (include color, shape, what the sign is for, etc.).
A. A regulatory sign: rectangular or square with a white or black background and black, white or colored letters. These signs give a direction that must be obeyed.
B. A motorist services sign: Blue rectangle or square signs that make a welcome for travelers who need a break from the road.
C. A recreational sign: Brown signs, rectangular in shape, that direct people to areas of public recreation and cultural interest.
D. A sign that you know what it means because of its shape: STOP, octagonal (has 8 sides) and because it’s red. It means stop.

*If each of the above signs do not appear in your town then describe any 3 different types you see in your community.

3. Explain 3 interesting or important facts from Module 3 and 4.
A. It is always necessary to use the proper restraint systems. You should also be sure to properly restrain any loose objects in your car because flying debris can also cause damage in a collision.
B. If it weren't for friction, you wouldn’t be able to start, move, turn, or even stop your car in an emergency. You'd have to wait for it to stop itself!
C. Turn the front wheels of your vehicle toward the curb if you are parking downhill, and turn them away from the curb if parked uphill.