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9-12 Unit 2 Mixed Practice

Last updated almost 3 years ago
22 questions
1

During which intervals did the object travel in a positive direction?

1

During which intervals did the object travel in a negative direction?

1

During which intervals did the object not move?

1

What is the velocity of the object from 0 to 10 seconds?

1

What is the velocity of the object from 10 to 15 seconds?

1

What is the velocity of the object from 25 to 35 seconds?

1

During which intervals is the object moving with a constant velocity?

1

During which intervals is the object moving with a positive acceleration?

1

During which intervals is the object moving with a negative acceleration?

1

What was the acceleration of the object from 5 to 10 seconds?

1

What was the acceleration of the object from 12 to 18 seconds?

1

What was the acceleration of the object from 34 to 42 seconds?

1

Draw the corresponding PT graph

1

Using the AT Graph, what is the speed of the object at t = 2.5 s if the object was initially at rest?

1

Using the AT Graph, what is the speed of the object at t = 5 s if the object was started with a speed of 10 m/s?

Reading a Motion Detector PT Graph

When walking towards and away from a motion detector, we get a pretty interesting graph, one that looks like a wave! We read this kind of PT graph much the same way as reading a normal PT graph. The slope is still the velocity. Curved areas still show accelerations. The only new thing is the wave-like shape.
Use this Motion Detecto PT graph to answer the following questions. NOTICE: the motion detector will always be located where the position is 0 meters.

2

Where is the motion detector located?

2

At what times is the object moving away from the motion detector?

3

At what times is the object moving toward the motion detector?

2

At what time is the object the slowest? Remember the slope of the line is the velocity on a PT graph.

2

At what time is the object the fastest? Remember the slope of the line is the velocity on a PT graph.

2

At what time is the object changing direction?

2

What is the velocity of an object at the moment it changes directions? Think about the slope of the line right at the moment it's changing directions.