The object in the graph on the left is:

Speeding up in the positive direction

Slowing down in the positive direction

Speeding up in the negative direction

Slowing down in the negative direction

Choose the situations where the object is slowing down:

Positive velocity, negative acceleation

Negative velocity, positive acceleration

Positive velocity, positive acceleration

Negative velocity, negative acceleration

Describe the motion of the object in this graph.

If is moving at a constant velocity, then accelerating.

It is stopped, then moving at a steady constant velocity.

It is moving at a constant velocity, then going a faster constant velocity

It is stopped, then slowing down.

During the last 4 seconds, what is the acceleration of the object?

It is impossible to tell without more information.

Choose the situations where the object is speeding up:

Positive velocity, positive acceleration

Negative velocity, negative acceleration

Positive velocity, negative acceleation

Negative velocity, positive acceleration

During the first 4 seconds, what is the acceleration of the object?

It is impossible to tell without more information.

Chose all the the scenarios where you are accelerating:

You are rounding a corner going a constant 20 m/s.

You see a beautiful, new, smiling stranger, who makes you slow to a stop.

You are standing still, watching your crush walk away from you.

You are running away at a constant velocity.

What was the total displacement of the object in this graph?

It is impossible to tell without more information.

The object in the graph on the right

Speeding up in the negative direction

Speeding up in the positive direction

Slowing down in the positive direction

Slowing down in the negative direction

Period 9 Review For Kinematics Test

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1/18 Questions

Which of the following is a distance?
- 2.65 m east
- 9.8 m down
- 11 m
- -3.4 m

About This Quiz

This 'Period 9 Review for Kinematics Test' assesses understanding of basic kinematics concepts, including distance, velocity, acceleration, and displacement. It is designed to test comprehension of motion principles and their applications.

Period 9 Review For Kinematics Test - Quiz

2.

The object in the graph on the left is:
- Speeding up in the positive direction
- Slowing down in the positive direction
- Speeding up in the negative direction
- Slowing down in the negative direction
Correct Answer

A. Speeding up in the positive direction

Explanation

This is where you want to draw the three circles, lay your pencil down on the line, and see how the velocity changes. The velocity is the slope of the line. At first, it is very slightly positive. As time goes on, it gets more and more positive. In other words, the object has a greater and greater positive velocity.

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3.

You drive 100 mi North. You then drive 20 miles south. What was your displacement?
- 80 m North
- 80 m South
- 120 m
- 120 m North
Correct Answer

A. 80 m North

Explanation

You are talking about displacement so you care about the direction. Because you are moving north and then south, you subtract your two values. 100-20=80. You need to include the direction because with displacement you care about your direction. Overall you went more north than south, so the direction of your displacement is north.

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1
4.

You drive 100 mi North and then 20 mi south. What is your distance?
- 80 mi North
- 80 mi
- 120 mi North
- 120 mi
Correct Answer

A. 120 mi

Explanation

When finding a distance, you don't care about direction. Just add up the two displacements and make sure you don't include the direction.

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5.

Choose the situations where the object is slowing down:
- Positive velocity, positive acceleration
- Positive velocity, negative acceleation
- Negative velocity, positive acceleration
- Negative velocity, negative acceleration
Correct Answer(s)

A. Positive velocity, negative acceleation
A. Negative velocity, positive acceleration

Explanation

Look at the signs on the positive and negative. If they are different, the object is slowing down.

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6.

Describe the motion of the object in this graph.
- It is stopped, then moving at a steady constant velocity.
- It is moving at a constant velocity, then going a faster constant velocity
- If is moving at a constant velocity, then accelerating.
- It is stopped, then slowing down.
Correct Answer

A. If is moving at a constant velocity, then accelerating.

Explanation

This is a velocity time graph, so the farther you go from the x axis, the faster you are going. At first, you are going a nice steady, 2 m/s. You keep doing this for 4 seconds. You then accelerate, faster and faster, up to 10 m/s.

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7.

What is the acceleration due gravity?
- -9.8 m/s/s
- -9.8 m/s
- +9.8 m/s
- +9.8 m/s/s
Correct Answer

A. -9.8 m/s/s

Explanation

The acceleration due to gravity on earth is -9.8 m/s^2 or -9.8 m/s/s.

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8.

Match the velocity graph to its acceleration graph.
- A
- B
- C
- D
Correct Answer

A. A

Explanation

This is a velocity vs. time graph. To find the acceleration, you just need to look at the slope. In this case, you have a negative slope. The answer is therefore A. Look at your notes if you are lost.

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9.

During the last 4 seconds, what is the acceleration of the object?
- 2 m/s/s
- 2 m/s
- 0 m/s/s
- It is impossible to tell without more information.
Correct Answer

A. 2 m/s/s

Explanation

This is a velocity vs. time graph. On this type of graph, the slope equals the acceleration. Use the slope equation to find the slope, which is 2 m/s. The units on acceleration are m/s/s.

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10.

You stand at the top of the highest building in the world, the Burj Kalifa, which is about 818 m tall. Imagine there is no air to get in the way. You drop a penny. How long would it take the penny to hit the ground?
- 166.9 s
- 41.7 s
- 12.9 s
- 20.4 s
Correct Answer

A. 12.9 s

Explanation

You need to remember for these that displacement (818 m) is down so it is negative (-818 m). Acceleration is on earth and due to gravity so a=-9.8m/s/s. Your initial velocity is 0 m/s. You should chose the second equation on your constant acceleration sheet.

If you got the first answer, you forgot to take the square root.
If you got the second answer, you forgot to divide by multiply by 2
If you got the fourth answer, you forgot to divide by 9.8

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11.

A zebra is being chased by a lion. It is running constantly at its top velocity +22 m/s. How long will it take the zebra to run 68 m?
- 46
- 0.32 s
- 1496 s
- 3.1 s
Correct Answer

A. 3.1 s

Explanation

Because the object is moving at a constant velocity, we use the equation v=d/t

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12.

A plane goes from flying 220 m/s to stop while experiancing an acceleration of -16 m/s/s. How far does the plane travel before it comes to a stop?
- 13.75 m
- 24200 m
- 27.5
- 1512.5 m
Correct Answer

A. 1512.5 m

Explanation

In this case, your initial velocity is 220 m/s. Your final velocity is 0 m/s. The acceleration was -16 m/s/s. You would chose the third constant acceleration equation.

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13.

Choose the situations where the object is speeding up:
- Positive velocity, positive acceleration
- Positive velocity, negative acceleation
- Negative velocity, positive acceleration
- Negative velocity, negative acceleration
Correct Answer(s)

A. Positive velocity, positive acceleration
A. Negative velocity, negative acceleration

Explanation

Look at the signs on the positive and negative. If they are the same, the object is speeding up.

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14.

During the first 4 seconds, what is the acceleration of the object?
- 2 m/s/s
- 2 m/s
- 0 m/s/s
- It is impossible to tell without more information.
Correct Answer

A. 0 m/s/s

Explanation

This is a velocity vs. time graph. On this type of graph, the slope equals the acceleration. During the first four seconds, the graph is flat, so the slope is zero and there is no acceleration. The units on acceleration are m/s/s.

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15.

Chose all the the scenarios where you are accelerating:
- You are standing still, watching your crush walk away from you.
- You are running away at a constant velocity.
- You are rounding a corner going a constant 20 m/s.
- You see a beautiful, new, smiling stranger, who makes you slow to a stop.
Correct Answer(s)

A. You are rounding a corner going a constant 20 m/s.
A. You see a beautiful, new, smiling stranger, who makes you slow to a stop.

Explanation

You are accelerating when you are speeding up, slowing down, or changing direction.

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16.

Which of the following is a velocity?
- 3.5 m/s
- .04 m/s
- -5.0 m/s
- -9.8 m/s/s
Correct Answer

A. -5.0 m/s

Explanation

A velocity needs a direction, which is +,-,up, down, left, right.... -9.8 m/s/s isn't it because that's an acceleration (m/s/s) not a velocity (m/s)

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17.

What was the total displacement of the object in this graph?
- 48 m
- 2 m
- 24 m
- It is impossible to tell without more information.
Correct Answer

A. 48 m

Explanation

This is a velocity vs. time graph. You can find the displacement of the object by finding the area under the line. Break it up into rectangles and triangles, then use the area equations to find the answer. Refer to your notes if you need help.

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18.

The object in the graph on the right
- Speeding up in the positive direction
- Slowing down in the positive direction
- Speeding up in the negative direction
- Slowing down in the negative direction
Correct Answer

A. Speeding up in the negative direction

Explanation

This is where you want to draw the three circles, lay your pencil down on the line, and see how the velocity changes. The velocity is the slope of the line. At first, it is very slightly negative. As time goes on, it gets more and more negative. In other words, the object has a greater and greater negative velocity.

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Quiz Edited by
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Oct 01, 2013

Quiz Created by
Storyphysics

Period 9 Review For Kinematics Test

Which of the following is a distance?

Quiz Preview

The object in the graph on the left is:

You drive 100 mi North. You then drive 20 miles south. What was your displacement?

You drive 100 mi North and then 20 mi south. What is your distance?

Choose the situations where the object is slowing down:

Describe the motion of the object in this graph.

What is the acceleration due gravity?

Match the velocity graph to its acceleration graph.

During the last 4 seconds, what is the acceleration of the object?

You stand at the top of the highest building in the world, the Burj Kalifa, which is about 818 m tall. Imagine there is no air to get in the way. You drop a penny. How long would it take the penny to hit the ground?

A zebra is being chased by a lion. It is running constantly at its top velocity +22 m/s. How long will it take the zebra to run 68 m?

A plane goes from flying 220 m/s to stop while experiancing an acceleration of -16 m/s/s. How far does the plane travel before it comes to a stop?

Choose the situations where the object is speeding up:

During the first 4 seconds, what is the acceleration of the object?

Chose all the the scenarios where you are accelerating:

Which of the following is a velocity?

What was the total displacement of the object in this graph?

The object in the graph on the right