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Distance, Displacement, Scalar, Vector, Speed, Rate, Velocity, Acceleration, Graphing Motion
A quantity that includes both magnitude (size) and direction.
A quantity that includes only magnitude (size).
How can you tell an object has moved?
The object's position changes compared to a reference frame.
Which term(s) is(are) scalar: distance, displacement, speed, rate, velocity, acceleration
distance, speed, rate
Total length of an object's path.
What is displacement?
An object's ending position compared to its starting point.
How quickly an object is moving at a certain time is its...
When does an object's velocity change?
speed up, slow down, change direction
What is negative acceleration?
What is positive acceleration?
How do you calculate average speed?
total distance divided by total time
What is the unit for speed?
What is the unit for distance?
What is the unit for acceleration?
What is the unit for rate?
What is the unit for velocity?
m/s + direction
Explain why a car turning a corner at a constant speed of 20 m/s is not traveling at a constant velocity.
Because the direction of the car is changing, velocity is not constant (vector).
What does a horizontal line on a distance vs time graph represent?
What does a diagonal, straight line represent on a distance vs time graph?
What does a curved line represent on a distance vs time graph?
non-constant speed (acceleration)
What does a horizontal line above the x axis represent on a speed vs time graph represent?
What does a horizontal line on the x axis on a speed vs time graph represent?
What does a straight, diagonal line represent on a speed vs time graph?
What does negative slope represent on a speed vs time graph?
What does negative slope represent on a distance vs time graph?
going back to start
How do you calculate distance?
Add up all of the lengths to get a total distance.
What does "delta v" represent?
change in velocity (final velocity minus initial velocity)
Explain why rate and speed are considered the same thing.
Both divide distance by time.
Explain the motion of the object in the graph.
slow constant speed away from start, stopped, slow constant speed away from start, fast constant speed home
Calculate the speed of the object during the third section of movement
S=? D=30m T=3s S=D/T S=30m/3s S=10m/s
Describe the motion of the object using the graph.
accelerating quickly, constant speed, slow acceleration, slow deceleration
Describe the acceleration of the object using each section of the graph
positive, zero, positive, negative
Explain the difference between speed and acceleration.
Speed only considers the distance and object moves in a given time, which acceleration includes how quickly the speed is changing in a given time with direction
Draw a graph for a person who walks up a hill at a constant speed, across the top, and down the other side.
See Graph on Board
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