• I.
MECHANICS
• II.
WAVES AND OPTICS
• III. ELECTRICITY AND MAGNETISM
• IV. MODERN PHYSICS
• V. ASTRONOMY

• What were some of the tools of a
Physicist?

• What were some of the tools of a
Physicist?
Practice safety & ethics
Identify & describe equipment
Use SI System
Manipulate formulas
The Scientific Method
Use Lab Report Format

• What is a frame of reference?

• What is a frame of reference?
• A system to determine location or motion of an object.
• How can I tell if something is moving and how fast?

• Rate of change of speed
• Occurs when we fall or go around a corner

What are forces and how do they commonly occur?

What are forces and how do they commonly occur?
• A force is a push or a pull
• They commonly occur in pairs

What are Newton’s Laws of Motion?

What are Newton’s Laws of Motion?
• #1 Inertia
• #2 F = ma
• #3 Action/Reaction

Motion in One Dimension -
Quantities, Units, Speed, Position,
Distance, Displacement, Velocity,
Vector, Scalar, etc.

• Read Chapter 2
• After reading the chapter, complete your
Reflections on the chapter.

¤ Motion can be described and analyzed in several ways
¤ How coordinate systems can be used in motion studies
¤ Terms such as displacement, magnitude, vectors
¤ More Terms: scalars, resultant vectors
¤ Interpret motion graphs
¤ Attributes of coordinate system origin & axis
¤ Models of motion diagrams

Also Needed to Know
¤ Speed, distance (d), and time are scalar quantities.
¤ Velocity, displacement
(s), force and acceleration are vectors.
¤ The slope of the distance-time graph is velocity.
¤ The slope of the velocity-time graph is acceleration.

• Object not moving, v = 0 m/s
• Object moving at constant velocity
• Object accelerating
• Object decelerating (negative acceleration)
• (Last 2 situations have unbalanced forces acting on them - to be discussed later in the book)

Organizing your thoughts
(and units)
• Fundamental
Quantities
– Length
– Mass
– Time
• Derived Quantities
– Velocity
– Density
– Volume
• Fundamental Units
– Meter
– Kg
– Sec
• Derived Units
– m/s
– g/ml or g/cm 3
– m 3 or cm 3

The "Big Five"
Kinematics
Equations
Average Speed/Velocity
Defined
Average Acceleration Defined
Final Velocity of an Accelerating
Body
Distance Traveled by an
Accelerating Body
What can I do if I don't know the time interval?
Constant acceleration is assumed v = d / t = ½(V f
+ V o
) a = ∆v / ∆t = (V f
- V o
) / (t f
- t o
)
V f
= V o
+ a(∆t) d = V o
(∆t) + ½ a(∆t) 2
V f
2 - V o
2 = 2 a d

In the above formulas, a can be replaced with g g = 9.8 m/s
2
(acceleration on Earth due to gravity when an object is falling)
Equation of motion for average velocity: d = vt + d i

• http://www.physicsclassroom.com/Default2
.html
• This site has information which may be helpful to you in your basic study of
Physics.

• Scalars have magnitude only (a number with units) such as a length of 5.0 m or a speed of 29.3 m/s
• Vectors have magnitude and direction
– Velocity: 29.3 m/s North
– Force: 25 newtons South
– Displacement

• Are represented by an arrow
• Length drawn to a chosen scale
(1cm:50m/s)
• Direction N S E W
• Vector addition:
– Same direction: add
– Opposite directions: subtract

A
B
R
A + B  R
A
B
R
A + (-B)  R