CHAPTER 2 TEST REVIEW: Motion in One Direction
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CHAPTER 2 TEST REVIEW: Motion in One Direction
In the table below match all that apply:
- The measure between begin point and end point
- Involves magnitude and direction
- Change in displacement per unit of time
- Involves magnitude only
- Change in velocity per unit of time
- velocity
- displacement
- distance
- speed
- acceleration
Using the number line above, explain how an object could have positive, negative and no displacement.- Using the graph to the right, describe the motion of the cat during every time interval.
- What is displacement? What is the unit of displacement?
- What is velocity? What are the units of velocity? What is the equation for velocity?
- What is acceleration? What are the units of acceleration? What is the equation for acceleration?
- Explain the relationship between velocity and acceleration. (i.e. if one is positive and so is the other one, what is the outcome of an object in motion?)
- What is the term used to describe when an object is accelerated solely by the acceleration due to gravity? What is the symbol for acceleration due to gravity? What is the value of acceleration due to gravity?
- As an object falls toward the earth is it speeding up? Explain. Why would it be considered to have a negative velocity and acceleration?
- Does mass/weight affect how fast an object falls to earth in a vacuum? Explain.
- Darian throws a ball down from the roof of the gym with an initial speed of 5.0 m/s. If the ball lands 1.8 second later, what is the height of the gym?
- A boat traveling downstream at a speed of 2.0 m/s accelerates at a rate of 1.25 m/s2 for a 21 sec period. What is the final velocity of the boat?
- Gabbriele and Gabrielladecide to jump off a cliff into a body of water 20 meters below them. Using the constant of 9.81 m/s2 for acceleration due to gravity, what is their speed when they hit the water?
- An automobile with an initial speed of 4.30 m/s accelerates uniformly at the rate of 3.00 m/s2. Find the final speed and the displacement after 5.00 s.
- A motorboat accelerates uniformly from a velocity of 6.5 m/s to the west to a velocity of 1.5 m/s to the west. If its acceleration was 2.7 m/s2 to the east, how far did it travel during the acceleration?
- Construct a position versus time graph that shows an object at rest for 2s, then a constantvelocity for 4s until it reaches a position of 2m, then at rest for 2s, then constant velocity for2s until it reaches a position of 1m, then at rest for 4s.
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