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1 Ch - Phy Sc M 6B

Physics - Motion (Apologia Physical Science M 6B)

QuestionAnswer
formula for acceleration a=(Vf-Vi)/t acceleration=(final velocity-initial velocity/time
acceleration the time rate of change of an object's velocity
When objects travel in the ____________ direction, their relative speed is the ____________ of their individual speeds. opposite, sum
When objects travel in the ____________ direction, their relative speed is the _______________ between their individual speeds. same, difference
A FLAT, horizontal line on a DISTANCE-TIME graph indicates an object is at rest with a constant speed of zero.
Meters per second (m/s) SI unit for speed
When dividing fractions don't ask why, just flip the bottom and ________________. multiply
acceleration units read "meters per second squared"
Acceleration can either speed up or slow down an object, depending on its __________________. direction
Constant speed means equal distances are covered.
extrapolation using actual data to estimate values higher or lower than what has been collected
Constant speed means equal distances are covered.
The slope of a line on a DISTANCE-TIME graph indicates speed.
Do we say "deceleration" in physics? No, we give the direction of the acceleration.
Can an object have constant speed and still have accceleration? Yes, if it is changing directions, such as with a carousel.
When solving acceleration problems, you must make sure that all of the units agree with each other.
When looking at physic problems, 1st write down everything you know and what the question is asking you to find.
After completing the 1st step & making sure the units agree, figure out what equation to use, substitute the values into the appropriate place, & solve the problem.
In a SPEED-TIME graph, the slope of the line is the magnitude of ACCELERATION.
Most of physics is concerned with motion.
Created by: MrsHough
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