5.1 Describing Motion
Example/Synonym
length from start to finish
unit: meters
Definition
The distance between the starting point and the final point; distance plus direction
Alan’s _____________ as he walks from the West Gate to the East Gate is 100 m.
Sentence
Picture
Example/Synonym
fastness
unit: meters/second
Definition
how fast an object is moving
distance / time
The __________________ of the fastest train is more than 300 miles/hour.
Sentence
Picture
Example/Synonym
length
unit: meters
Definition
How far an object has traveled
Alan walks a _____________ of 400 meters from the West Gate to the East Gate.
Sentence
Picture
Example/Synonym
t
unit: seconds
Definition
How long something takes. A time interval.
Doing my homework takes me a long __________, but it helps me practice what I’ve learned.
Sentence
Picture
Example/Synonym
speed with direction
unit: meters/second
Definition
how fast an object is moving, and in what direction
displacement / time
On her way home, the ________ of the runner was -3 m/s. On her way out, her ________ was +3 m/s.
Sentence
Picture
Example/Synonym
displacement
velocity
acceleration
Definition
Magnitude (value) WITH direction
____________ are measurements that need a direction in order to make sense
Sentence
Picture
10 m to the East
Example/Synonym
distance
speed
mass
Definition
Magnitude (value) without direction
____________ are measurements that only need a number in order to make sense
Sentence
10 m
Picture
Example/Synonym
speeding up
slowing down
unit: m/s2
Definition
Change in velocity over time.
The car had a positive ________________ after leaving the parking lot.
Sentence
Picture