
Introduction to Motion
Presentation
•
Science, Physics
•
7th Grade
•
Practice Problem
•
Easy
Kendra Castro
Used 62+ times
FREE Resource
11 Slides • 4 Questions
1
Introduction to Motion
2
In each picture, what is moving and how is its position changing?
Describe the picture
3
Describe the picture
1. The train and all its passengers are speeding straight down a track to the next station.
2. The man and his bike are racing along a curving highway.
3. The geese are flying over their wetland environment.
4. The meteor is shooting through the atmosphere toward Earth, burning up as it goes.
4
Motion
- is the change of position over time.
When describing motion, the answer depends on the POSITION and MOTION of the person observing you.
Example: Sitting at your desk, are you in motion?
Sitting in a car, are you in motion?
5
Multiple Choice
What is motion?
change of speed over time
change of position over time
change of acceleration over time
change of velocity over time
6
Predict
Even if you did not see this jump, but saw footprints on the starting line and in the sand, you know motion occurred because..
7
Predict
You can still know that he was in motion because of the distance between the starting and ending point (the jumper changed position).
8
Position
Describes the LOCATION of an object.
---Can be described using up, down, north, south, east, or west.
A position is compared to a REFERENCE POINT__.
A REFERENCE POINT is the location to which you COMPARE another location.
9
Multiple Choice
A position is compared to a
speed
reference point
location
10
Reference Point
A place or object used for COMPARISON to determine if something is in MOTION. An object is in motion if it changes POSITION relative to a REFERENCE point.
Ex: Stationary Objects; Tree, Building, Sign.
11
Multiple Choice
Reference Point
A place or object used for comparison to determine if something is in motion.
is the change of position over time
12
Yellow Dot
Where is this located?
13
North of DISCOVERY PLACE South of FOURTH WARD ST
East of SETTLER’S_CEMETERY Corner of N CHURCH AND W 7TH_
The objects you described above can be called: REFERENCE POINT.
14
Multiple Choice
What information do you need to describe an object’s position?
its speed
a reference point
its direction
its size
15
Part 11: You can work on your own
VIDEO: https://www.youtube.com/watch?v=2KOUkDxtQkc
Introduction to Motion
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