motion ipc notes. motion & position motion – a change in an object’s position relative to a...
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Motion
IPC NOTES
MOTION & POSITION
motion – a change in an object’s position relative to a reference point
DISTANCE VS. DISPLACEMENT
distance – the total length traveled
displacement – the distance and direction of an object’s change in position
DISTANCE VS. DISPLACEMENT
Billy runs 2 full laps around the track. If each lap is 400 m, what is his total distance traveled?
DISTANCE VS. DISPLACEMENT
Billy runs 2 full laps around the track. If each lap is 400 m, what is his total distance traveled?
distance = 800 m
DISTANCE VS. DISPLACEMENT
Billy runs 2 full laps around the track. If each lap is 400 m, what is his displacement?
DISTANCE VS. DISPLACEMENT
Billy runs 2 full laps around the track. If each lap is 400 m, what is his displacement?
displacement = 0 m
SPEED
speed – the distance an object travels per unit time
There are 3 types of speed: constant, average & instantaneous
SPEED
constant speed – speed that does not change over time
ex) driving with cruise control
SPEED
average speed – the total distance traveled divided by the total time traveled
ex) average speed for a trip
SPEED
instantaneous speed – the speed at an exact moment
ex) the speed listed on a speeding ticket
GRAPHING DISTANCE VS. TIME
Graphing distance vs. time shows velocity.
Time = independent variable = X-axis
Distance = dependent variable = Y-axis
GRAPHING DISTANCE VS. TIME
What is the total distance traveled at 30s?
GRAPHING DISTANCE VS. TIME
How long did it take to travel 80m?
GRAPHING DISTANCE VS. TIME
What is happening between 20s and 48s?
CALCULATING SPEED & VELOCITY
V = d
t
CALCULATING SPEED & VELOCITY
V = d
t
V = velocity or speed (m/s)
d = distance (m)
t = time (s)
PRACTICE PROBLEM #1
What is the average speed of a race car that travels 800 m in only 6.8 seconds?
PRACTICE PROBLEM #2
What is the velocity of a snail that takes 120 seconds to travel a distance of 0.336 m?
PRACTICE PROBLEM #3
How far does Garfield walk to get lasagna if he walks at a speed of 1.5 m/s for a total of 12 seconds?
PRACTICE PROBLEM #4
How long will it take a cyclist to go 1600 m at a speed of 9 m/s?
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