Forces and Motion
Mrs. Anna Ward
Ridge Road MS
Warm Up Copy onto Page 13
King Henry Died Unexpectantly
Drinking Chocolate Milk
Announcements

Turn in your forms to your homeroom
teachers
◦ Lockers September 10th – 12th ($7)

The Raven Way Expectations
◦ Day 7
Agenda for the Week…

Today is the official beginning of our last major unit
of study together:
“FORCES AND MOTION”
We
have VERY limited time to complete a lot of
information





Monday: Vocabulary & Speed Calculations
Tuesday: Racecar Lab & Speed Calculations
Wednesday: Bubble Gum Physics, DT Graphs
Thursday: DT Graphs Stations
Friday: Glider Lab, Speed, DT Graph Practice
Agenda for the week

For this unit, I am going to try to have at least
one mini lab per day to get you up and out of
your seat “DOING SCIENCE”

You must have exceptional behavior and use your
quiet partner voices for this to work.
REMEMBER: You all want science to be fun, but it
has to be a safe and orderly environment.

Many of the materials (cars, balls, etc.) I have
borrowed from my children’s toy basket. PLEASE
TAKE EXCEPTIONAL CARE OF THESE ITEMS.
Lost or stolen materials = NO MORE LABS

Agenda for the Unit…
In addition to mini-labs, Thursday you may
have an outside lab.
 In order to earn this privilege, you will need
to meet class expectations as well as
complete a pre-lab sheet
 I will continue to do a super fun activity at
the end of every week if as your behavior and
attitude warrant me doing so.

Today we are going to…

Learn some of the very basic vocabulary
◦ Position, Motion, Distance, and Speed
Watch a couple of videos
 Take some guided notes
 Participate in a Mini-Lab
 Learn how to calculate
speed

Preview of what we are going to
talk about this week….

http://player.discoveryeducation.com/inde
x.cfm?guidAssetId=CDA9C235-0EC44CA5-A713B920EBD189D2&blnFromSearch=1&prod
uctcode=DSCE
Position
 POSITION
is the location of a
place or object.
Often you describe where something is
by comparing its position with that of
something else
 Can someone describe how they used
this technique in the last exercise?

Reference Points

Each time you identify the position of an
object, you are comparing the location of
the object, you are comparing the location
of the object with another location or
place
 The
object or location to which you
compare other objects or
locations is called a
REFERENCE POINT.
Video:

http://player.discoveryeducation.com/inde
x.cfm?guidAssetId=514D72E8-8C864CFE-8FC0044F1A32DBAA&blnFromSearch=1&pro
ductcode=US
Distance
 DISTANCE
is the measurement
of two positions
 In
science, we measure distance
in METERS
◦ Kilometers for long distances
◦ Centimeters for short distances
Distance can be either straight line
or a measure of a path taken…
Question:
How would the
distance of the
path of this
maze be
different from a
straight line
measurement?
MOTION…
 MOTION
is the change of
position over time.
 Motion
can be either:
VERTICAL
HORIZONTAL
SOME IMPORTANT THINGS TO
NOTE….

Motion does NOT indicate how quickly
something changed position
◦ This is SPEED, something we will learn in a
moment

Motion can change direction
Check for Understanding…
1.
2.
3.
4.
What is the name for the location of a
place or object?
How does scientists measure distance?
Motion can be __________ or
______________.
The location or object to which you
compare other objects or
locations is the ____________.
Finally, what is speed???

Speed is a “rate of motion”

It is measured as a distance over time

SPEED = DISTANCE
TIME
◦ Or speed = m/s
Mini-Lab: How can you measure
speed?

iPods, Smart Phones
◦ Expectations
Mini-Lab: How can you measure
speed?
Turn to page D16 in the textbook. You will
work with in groups of 3 to complete the
short task “EXPLORE SPEED”. You have 5
minutes to complete this and turn in the
“WHAT DO YOU THINK?” questions as part
of your exit ticket.
2 people to roll balls
Team Captain will use stopwatch to record
time.
DISCUSSION: SPEED
You actually already know a
great deal about speed.
 What does the speed limit
on the road stand for?
 MILES PER HOUR
 Or miles
hour
 Remember our formula for
speed?

Calculating Speed
A wheelchair racer completes a 100 meter
course in 20 seconds. What is his speed?
Calculating Speed

If a car travels 400 meters in 20 seconds
how fast is it going?

Answer: 20 m/s
EXIT TICKET
1.
Mr. K’s class is 10 meters away. If it
takes you 8 seconds to get there, what is
your speed?
2.
The Gym is 100 meters away. If it takes
you 90 seconds to walk there, what is
your speed?