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Read What is Physics?
and answer these Questions

Sheldon from the Big Bang explains physics

Why is Science Important?

from Alom Shaha on Vimeo.

"The most incomprehensible thing about the universe is that
it is comprehensible."

- Einstein

Over Arching Concept

If a mass speeds up, slows down or changes direction,
a net Force Must Be Present - Newton

Video Instruction

showmethephysics.com

Fill in the Blank Notes

Enduring Understandings

1. Speed is the distance traveled per unit time?

2. Speed is measured in meters/sec.

3. A meter is about a yard.

4. Average walking speed is 1 m/s.

Unit I - Mechanics - Study of the relationship between force and motion

I. Kinematics - Mathematical methods of describing and predicting motion

Describe motion by using:

A) Average Speed

Average Speed
of 120 miles per hour

can also be written ...

120 miles/hr

per = divided by

Could mean travelled

120 miles in one hour

OR ....

60 miles in ...

1/2 hour (30 minutes)

30 miles in ...

15 minutes

OR 15 miles

in 7.5 minutes

Can you believe the speed limit in
Calgary, Canada is 100!!

100 km/hr ≈ 60 mph

Avg. Speed - how much distance an object covers per unit time

1) Units: m/s, km/hour,

miles/hour

Average Speed = Δd/Δt

Distance

(meter ≈ 1 yard)

(km ≈ .6 miles)

Time
- secs, minutes, hours

Ex 1) An object travels 5.0 meters in 2.0 seconds.

Find its speed.

Speed = Δd/Δt

= 5.0 m/2.0 sec

= 2.5 m/s

Ex 2) An object moves at a rate of 3.0 m/s for 1.5 seconds.

How far did the object move?

Speed =Δd/Δt

3.0 m/s = Δd/1.5 sec

Δd = 4.5 m

Motion Map

3.0 m/s for 1.5 seconds

Δd = 4.5 m

Photos made by Eadweard Muybridge (1830- 1904)
Animation by User Waugsberg

Public Domain

Ex 3) An object moves at rate of 4.0 m/s over a distance of 10. meters.

How long did it take to travel that distance? t = ?

Speed = d/t

4.0 m/s = 10. m/t

(Cross Multiply)

(4.0 m/s)t = 10. m

(Divide by 4)

t = 2.5 seconds

Motion Map

How much time to travel 10 m @ 4 m/s?

t = 2.5 seconds

Motion Plots I