Vocab
Graph
Acceleration/Velocity
Miscellaneous
Forces
100
When an object's distance from another is changing
What is motion
100
the steepness of a line on a graph
What is slope
100
Give an example of deceleration
(answers will vary)
100
Basic SI unit of length
What is meter
100
A push or pull on a given object is called what?
What is force
200
Rate at which velocity changes
What is acceleration
200
You can show the motion of an object by plotting it on a distance vs. ______ graph
What is time
200
What are the units for velocity
What is m/s plus specific direction EX: 10 m/s to the North
200
Speed=Distance/____________
What is time
200
The force that two surfaces exert on each other when they rub against each other is called________.
What is friction
300
total distance / total time
What is average speed
300
In a speed vs. time graph a straight line shows that acceleration is________.
What is constant
300
Find Avg Speed: A speed walker travels 400m in 15 min. What is her avg speed?
26.666 m/min
300
Changing direction is a type of this speed
What is acceleration
300
This is the imaginary force that pulls objects toward each other in our universe.
What is gravity
400
this is used to tell whether an object is in motion, it is usually stationary
What is reference point
400
Use graph to answer question #1. What is Kathy’s average speed? What is Rachel's average speed? Show your work.
Kathy = 150 m/min = 2.5 m/s Rachel = 60 m/min = 1 m/s
400
What is the rate at which an object is moving at a given instant in time?
What is instantaneous speed
400
How can you tell if an object is moving when its motion is too slow for you to see?
Align the object with a reference point that is not moving. Check the object's position relative to the reference point at different times to see if it has changed.
400
These are the factors that affect gravitational attraction between two or more objects.
What is mass and distance.
500
Acceleration is measured in these units
What is m/s/s or m/s^2
500
Use graph to answer question #2. What is Kathy and Rachel's respective distances traveled after six minutes?
Kathy: 900 m Rachel: 500 m
500
Usain Bolt ran 400 m. He went from rest to 30 m/s in 12 seconds. What is his acceleration?
2.5 m/s^2
500
An insect lands on a compact disc that is put into a CD player. If the insect sits still on the disc but is spinning with the disc, is the insect accelerating? Why or why not?
The insect is accelerating because the direction of its motion is always changing.
500
This is the type of fluid friction a plane experiences when flying through our atmosphere.
What is air resistance
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