Vocabulary
Motion Map Model
Graph Models
Math Model
100
When you maintain the same speed throughout a time period (no change in speed)...
What is... constant speed?
100
A diagram that is used to visualize the motion of an object... (often created using strobe photos)
What is... a motion map?
100
The slope of this graph represents...
What is... constant velocity? (or constant speed)
100
Constant or average velocity, vav is equal to (using symbols)...
What is... d/t? (or ∆d/∆t)
200
Speed at a certain “instant” in time...
What is... instantaneous speed?
200
The type of motion shown here...
What is... constant speed? (or average speed)
200
The following graph represents...
What is... no motion? (or stopped, or moving with 0 m/s)
200
For an object moving at constant velocity, the distance covered would be d = ...
What is d=vt (or ∆d=v∆t)
300
The speed in a given direction...
What is... velocity?
300
The car moving with the quickest speed...
What is... car A?
300
Compared to Graph B, the object in Graph C is moving...
What is... faster? (or with a faster constant speed or velocity)
300
Your average speed when you drive 400 miles in 8 h...
What is... 50 mi/h (or 50 mph)?
400
Something that has a quantity or magnitude with direction...
What is... a vector?
400
The car moving the slowest...
What is... Car C?
400
Compared to Graph B, the object in Graph D is moving...
What is.. opposite direction? (or with negative velocity)
400
Your reaction distance when you are moving at 20 m/s and have a delayed reaction time of 2 s...
What is... 40 m?
500
Something that has a quantity or magnitude with NO direction...
What is... a scalar?
500
Since this car is moving backwards, it is moving with...
What is... negative velocity?
500
The motion of this object from start to finish...
What is... moving with constant velocity forward, then stopped, then moving with constant velocity backwards?
500
The 3-second rule ensures that you are leaving enough following distance behind the car in front of you. Using this rule, the following distance when you are going at 70 mi/h (100 ft/s)...
What is... 300 ft?