What is a frame of reference?A system of objects that are not moving with respect to one another Necessary to completely and accurately describe motion.

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Presentation transcript:

What is a frame of reference?A system of objects that are not moving with respect to one another Necessary to completely and accurately describe motion What is displacement?The length of a path between two poins that has direction from the starting point and the ending point using a straight line Define distanceThe length of a path between two points Describe how to do vector addition.If the object that is moving is going in the same direction then add the two or more vectors. If the object is moving in the opposite direction then subtract the two or more vectors.

What is the most common unit for : Speed? Velocity? Acceleration? Speed: meters per second, m/s Velocity: meters per second, m/s Acceleration: meters per second squared m/s2 Define average speed.The speed for the entire duration of a trip, the total distance traveled divided by the time it took Define instantaneous speed.The rate at which an object is moving at a given moment How do you find the average speed?Speed= Distance divided by time S= D/T

What does the slope of a distance – time graph tell you? the speed What does the slope of a speed-time graph tell you? the acceleration What is the equation for speed?S= D/T What is the equation for velocity?V= D/T

Define velocityThe speed and direction of a moving object Define accelerationThe rate at which velocity changes Can be a change in speed, direction or both speed and direction What is the equation for acceleration? What does each letter stand for? A = Vf-Vi/ T Acceleration = final velocity subtracted from the initial velocity divided by the change in time Describe how to find displacement.Add displacements using vector addition so if the displacements are going in the same direction then add them. If the displacements are going in opposite directions subtract them.

Which is a vector? Speed, velocity and/or acceleration How do you know? Velocity and acceleration Both have magnitude and direction What is a vector?A quantity that has magnitude and direction Explain why acceleration’s unit is meters per second squared. For every second an object falls towards Earth its’ velocity increases by 9.8 m/s so it’s velocity increases every second because of gravity

What is a frame of reference? What is displacement? Define distance Describe how to do vector addition.

What is the most common unit for : Speed? Velocity? Acceleration? Define average speed. Define instantaneous speed. How do you find the average speed?

What does the slope of a distance – time graph tell you? What does the slope of a speed-time graph tell you? What is the equation for speed? What is the equation for velocity?

Define velocity Define acceleration What is the equation for acceleration? What does each letter stand for? Describe how to find displacement.

Which is a vector? Speed, velocity and/or acceleration How do you know? What is a vector? Explain why acceleration’s unit is meters per second squared.