1.Reference Point

2.Scalar3.Vector4.Position

5.Distance6.Displacement

7.Speed 8.Average Speed

Reference Point• Def: a point that all motion will

be measured relative to the Starting Point

• This is the starting point.

Two Types of Units• ____________:–Unit includes only objects magnitude (numerical value)

Examples:____________________• ____________:

–Unit includes magnitude and direction

Example: going 100 mph to the East

Example:_____________________________________________________

Two Types of Units• Scalar:–Unit includes only objects magnitude (numerical value)

Example: speed, distance• Vector:

–Unit includes magnitude and direction

Example: going 100 mph to the East

Example: Velocity, acceleration, force, displacement,

Position• Def:____________________________________________________________–Symbol =_____–Unit = _______–Scalar or Vector?

• Use the position vs time graph to calculate the speed of the bug using s=d/t_______________

Position• Def: a point some distance and direction from my reference point–Symbol = x–Unit = meters (m)–Scalar

• Use the position vs time graph to calculate the speed of the bug using s=d/t_______________

Distance• Def:_______________________________________________________________

• Example: If Dallas was 100 miles away and I drove to and from Dallas, what would be my distance??_______ miles to Dallas?_______miles from DallasTotal miles driven (distance)?

___________

Distance• Def: refers to the total distance traveled

• Example: If Dallas was 100 miles away and I drove to and from Dallas, what would be my distance??_______ miles to Dallas?_______miles from DallasTotal miles driven (distance)?

___________

Displacement• Def:_____________________________

(Δx = xfinal – xinitial)=___________ – __________

Example: If Dallas was 100 miles away and I drove to and from Dallas, what would be my displacement?–Start point = ________–End point = _________–Displacement=____________

Displacement• Def: Refers to the change in position

(Δx = xfinal – xinitial)Finish pt – start pt

Example: If Dallas was 100 miles away and I drove to and from Dallas, what would be my displacement?–Displacement would be zero–Start point = Houston–End point = Houston

Distance vs. Displacement

DistanceScalar or

VectorUnit:________

Formula: ____________

Used to find:

_________Symbol:_____

Displacement

Scalar or Vector

Unit:_________Formula:

_____________

Used to find: ___________

Symbol:______

Distance vs. Displacement

DistanceScalar quantity

Unit: m, kmTotal

distance traveled

Used to find Speed

Symbol: d

Displacement

Vector quantity

Unit: m, kmΔx = xfinal –

xinitial

Used to find Velocity

Symbol: Δx

Distance vs. Time Graphs

Speed• Def:_______________________________________________________________–Scalar or Vector Quantity?–Unit:______________________–Slope of the distance vs. time graph

–Can be read directly off a speed vs. time graph

–Symbol:____

Speed• Def: How fast you change position (distance traveled per unit time)–Scalar Quantity–Unit: meters per second (m/s)

–Slope of the distance vs. time graph

–Can be read directly off a speed vs. time graph

–Symbol: s

Average Speed• Def:____________

__________________–Scalar or Vector?

–Unit: ________–Symbol: _______

What is the average speed of object in

graph?Use Rise over run__________________

Average Speed• Def: total

distance divided by total time–Scalar quantity–Unit: m/s–Symbol: s

What is the averageSpeed?

Rise over run2m/4sec = .5

m/sec

What is the speed of Light??• The sun is ___________km

from the Earth or _________ miles

• It takes light _____seconds to travel from the Sun to the Earth in the vacuum of outer space.

• What is the speed of light??

• S =______________

Memorize this number

!

What is the speed of Light??• The sun is 150,000,000

km from the Earth or 93,000,000 miles

• It takes light 500 seconds to travel from the Sun to the Earth in the vacuum of outer space.

• What is the speed of light??

• S = 300,000 km/s

Memorize this number

!

__________velocity

_________velocity

_________ velocity

Describe the motion in the

following graphs based on slope

using:“lesser”, “zero”,

“greater”

Faster velocity

Slower velocity

NO (zer0) velocity

Describe the motion in the

following graphs based on slope

using:“lesser”, “zero”,

“greater”