Physical Science2nd Semester

PhysicsDraw motion

Seat #___ Name _________ page 1

What is Your Displacement pg7

1. Draw a map from school to your house.2. Place a dot at your house.3. Place a second dot at the school.4. Write a paragraph describing the directions.

Distance – the length of a path between two points (How many steps taken)

Ex: 40m + 30m = 70m

Displacement – shortest path between two points with direction

(How far away from start and direction) Ex: 50m east then 40m west is calculated

as 50m east - 40m west = 10m east

Distance and Displacement p8

Below your notes draw the following:1. Draw a dot at the top of the space on your paper.2. Connect the two dots using 5 straight lines in a

zigzag pattern.3. Use a ruler to determine the distance of your

path.4. Use a ruler to determine the displacement from

start to finish in cm.Distance (how far your pencil moved) = ______ cm Displacement (line from first to last dot) = ______ cm

Practice Distance and Displacement pg8

Motion – change in position with frame of reference

Speed – distance moved in a given time (How fast are you going?) ratio or rate

s=d/t s=speed d=distance t=time

SI unit: m/s m=meter s=second

Speed pg 10

Velocity– speed plus direction Ex: m/s north (How fast are you going in a direction? Ques: If you are going the same speed around a

race track does your velocity change?

Velocity pg 10

Instantaneous – rate at a specific instant Ex: radar gun measures how fast right now

Constant Speed – your speed remains the same Ex: using cruise control in your car

Average Speed – total distance travelled in total time (How fast was the whole trip?)

Ex: Average speed to Greenville is 42 mi/hr

Types of Speed/Velocity pg 10