Vocabulary!
Describing and Measuring
Motion
Velocity and Speed
Acceleration
OH NOES! MATH!
100
This is a graph that is a straight line.
What is linear?
100
This is an object used for comparison to see if something is moving.
What is reference point?
100
This is the rate of how far something can move in a unit of time.
What is speed?
100
The rate at which velocity changes with time is called this.
What is acceleration?
100
A runner covers 100 meters in 50 seconds. This is her speed.
What is 2 m/s?
200
This is the length of a path between two points.
What is a distance?
200
This is the basic unit of length in the metric system.
What is the meter?
200
This is the formula to figure speed.
What is speed = distance divided by time?
200
If you are going 30 miles per hour, and you slow down to 20 miles per hour, this will be the sign for your acceleration.
What is negative?
200
A runner runs at a speed of 5m/s. This is how far they go in 60 seconds.
What is 300 meters?
300
This is rise over run on a graph.
What is slope?
300
These kinds of objects make good reference points because they themselves typically don't move.
What is stationary objects?
300
Speed is not always constant, so we often calculate this by dividing total distance by total time.
What is average speed?
300
These are the values on the y axis and x axis of a graph whose slope shows you acceleration.
What is speed and time?
300
A sled is going down a snow-covered slope at 12m/s. How long will it take the sled to get to the bottom if the distance to the bottom is 36m?
What is 3 seconds?
400
This is the length and direction an object has moved from its starting point.
What is displacement?
400
This is what you get if you calculate the slope of a distance vs. time graph.
What is speed?
400
These two things make up velocity.
What is speed and direction?
400
This is the formula to calculate acceleration.
What is acceleration = (final velocity - initial velocity)/ time
400
A man walks at 0.5 m/s, then accelerates to a velocity of 0.6 m/s in 1 second. This is his acceleration.
What is 0.1 m/s2?
500
This is a graph that is curved.
What is non-linear?
500
This is what we call when the distance between one object and another object is changing.
What is motion?
500
Velocity is an example of this, anything that has a magnitude and direction.
What is a vector?
500
This is how you can accelerate even if you are moving at constant speed.
What is change direction?
500
A train traveling at 10 m/s slows down to a complete stop in 20 seconds. This is the acceleration of the train.
What is -0.5 m/s2?
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