terms and units
speed
acceleration
momentum
Wild Card
100
m/s
What are the units for speed
100
a vector quantity that measures how far and object changes position
What is displacement
100
These are the units for acceleration
What is m/s/s or meters per second squared
100
momentum is equal to this
What is mass X velocity
100
a measure of how hard it is to stop and object
What is momentum
200
This requires a change in position
What is motion
200
An object moves 5m in 10s. This is the speed
What is 0.5m/s
200
Acceleration measures a change in this
What is velocity (over time)
200
If the speed of an object increases, this happens to momentum
What is increases
200
a horizontal line on a distance time graph
What is no motion (no change in distance)
300
Kg x m/s
What are the units for momentum
300
It will take an object moving at 4m/s this long to go 20m
What is 5s
300
To calculate acceleration you need to know time, final speed and this
What is initial speed
300
An object with a momentum of 30 kgxm/s east has a velocity of 5m/s east. This is the mass
What is 6kg
300
this is what is a horizontal line means on a velocity vs time graph
What is no change in speed (constant motion)
400
The speed of an object at a specific moment in time
What is instantaneous speed
400
you walk 3meters north, 2 meters west, 3 meters south, and 1 meter east. This is your displacement
What is 1 meter west
400
If an object starts at 5m/s and 4 seconds later is moving at 3m/s, this is the acceleration
What is -0.5m/s/s
400
A person with a mass of 40kg is sitting in an office chair. Her friend, who also in 40kg, runs at 2m/s west and jumps into the chair with her. They roll of at this velocity
What is 1m/s west
400
4 vector quantities
What is displacement, velocity, acceleration,momentum
500
Km/hr/s
What is a unit for acceleration [This is not a unit I will use on the test, but you can tell it is acceleration because it si a unit of speed (Km/hr) over a unit of time (s)]
500
A car is traveling 25 km/hr. This is how long it takes to go 150km
What is 6h
500
An object is accelerating at 10m/s/s. After 5 seconds this is the speed of the object if it was originally moving at 10m/s
What is 60m/s
500
Marble A is 8g and rolls toward another stationary marble at 2m/s. They hit and marble B rolls off at 0.5 m/s while marble A is now moving at 1m/s. This is the marble B's mass.
What is 4kg
500
An object is moving 20m/s east. 5 seconds later it is moving at 10m/s . This is its acceleration
What is -2m/s/s
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