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Chapter 9 Quiz. 9.1- 10. How can you tell if an object is in motion?. 9.1 – 10. Its distance from a reference point is changing. 9.1 - 20. A place or object used for comparison to determine if something is moving. 9.1 – 20. Reference point. 9.1- 30.
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9.1- 10 • How can you tell if an object is in motion?
9.1 – 10 • Its distance from a reference point is changing
9.1 - 20 • A place or object used for comparison to determine if something is moving
9.1 – 20 • Reference point
9.1- 30 • What is the difference between distance and displacement?
9.1– 30 • Displacement also has a direction
9.1 - 40 • A quantity that consists of both a magnitude and a direction
9.1– 40 • vector
9.1- 50 • An object moves 6 to the left, 4 to the right, 1 to the left, and 5 to the right. What is the distance and displacement?
9.1 – 50 • Distance = 16 • Displacement = +2
9.2 - 10 • What is the formula for calculating speed?
9.2 – 10 • Speed = Distance / Time
Question 2 - 20 • The TOTAL speed over the TOTAL time
9.2 – 20 • Average speed
9.2 - 30 • What is the difference between speed and velocity?
9.2 – 30 • Velocity is speed and direction.
9.2 - 40 • Changes in velocity may be due to changes in __________ and/or changes in ___________.
9.2 – 40 • Speed, direction
9.2- 50 • The slope of a distance-versus-time graph is equal to the object’s ____________.
9.2 – 50 • speed
9.3 - 10 • What are three ways an object can accelerate?
9.3 – 10 • Speed up • Slow down • Change direction
9.3 - 20 • What is the formula for acceleration?
9.3 – 20 • Final velocity – initial velocity/ time
9.3 - 30 • The slope of a speed-versus-time graph is equal to the object’s _________________.
9.3 – 30 • acceleration
9.3 - 40 • How can something be accelerating if its speed is constant at 10 m/s?
9.3 – 40 • It could be changing direction?
Vocabulary - 10 • The length of a path between two points
Vocabulary – 10 • Distance
Vocabulary - 20 • The steepness of a line on a graph
Vocabulary – 20 • slope
Vocabulary - 30 • The speed and direction of an object
Vocabulary – 30 • velocity
Vocabulary - 40 • The speed that a object is going at a given instant in time
Vocabulary – 40 • Instantaneous speed
Vocabulary - 50 • The process of speeding up, slowing down, or changing direction
Vocabulary – 50 • acceleration