Quiz about Module 2 Representing Motion Review

Question 1

Besides knowing the location of an object, what else must be known to describe its motion along a straight line?

Accepted Answer

The time it takes for the object to move

Answer

The forces acting on the object

Answer

The energy changes of the object

Answer

The acceleration of the object

Question 2

Which of the following is NOT a way in which an object's position can change?

Accepted Answer

Standing still

Answer

Straight line

Answer

Circle

Answer

Back-and-forth vibration

Question 3

Which of the following is an example of a vector quantity?

Accepted Answer

Position

Answer

Time

Answer

Distance

Answer

Temperature

Question 4

What is the difference between a vector and a scalar?

Accepted Answer

Vectors have magnitude and direction, while scalars only have magnitude

Answer

Vectors have magnitude, while scalars have direction

Answer

Vectors have direction, while scalars have magnitude

Answer

Vectors and scalars are the same thing

Question 5

What is displacement?

Accepted Answer

The change in position of an object

Answer

The distance traveled by an object

Answer

The speed of an object

Answer

The time it takes for an object to move

Question 6

What is a resultant vector?

Accepted Answer

A vector that represents the sum of two other vectors

Answer

A vector that represents the difference between two other vectors

Answer

A vector that represents the average of two other vectors

Answer

A vector that represents the product of two other vectors

Question 7

What is the purpose of a position-time graph?

Accepted Answer

To show the position of an object at different times

Answer

To show the speed of an object

Answer

To show the acceleration of an object

Answer

To show the distance traveled by an object

Question 8

To show the distance traveled by an object

Accepted Answer

The objects are at the same position

Answer

The objects have the same speed

Answer

The objects have the same acceleration

Answer

The objects have the same distance traveled

Question 9

Which object is moving faster?

Accepted Answer

Object A

Answer

Object B

Answer

Both A and B are moving at the same speed.

Answer

You can't tell that information from the graph.

Question 10

What is the difference between average velocity and average speed?

Accepted Answer

Average velocity is the change in position divided by the time taken, while average speed is the total distance traveled divided by the time taken

Answer

Average velocity is the total distance traveled divided by the time taken, while average speed is the change in position divided by the time taken

Answer

Average velocity and average speed are the same thing.

Answer

Average velocity is the displacement divided by the time taken, while average speed is the total distance traveled divided by the time taken

Question 11

What does the slope of a position-time graph represent?

Accepted Answer

Average velocity

Answer

Average speed

Answer

Instantaneous velocity

Answer

Instantaneous speed

Question 12

What does the sign of the slope on a position-time graph indicate?

Accepted Answer

The direction of motion

Answer

The speed of the object

Answer

The acceleration of the object

Answer

The displacement of the object

Question 13

What is the instantaneous velocity of an object?

Accepted Answer

The speed and direction of an object at a particular instant

Answer

The total distance traveled divided by the time taken

Answer

The change in position divided by the time taken

Answer

The average velocity over a specific time interval

Question 14

How would you walk to create the graph shown?

Accepted Answer

Walk away from the origin at constant speed.

Answer

Walk away from the origin while speeding up.

Answer

Walk toward the origin at constant speed.

Answer

Walk toward the origin while speeding up speed.

Question 15

How would you walk to create the shown?

Accepted Answer

Walk toward the origin at a constant speed.

Answer

Walk away from the origin at a constant speed.

Answer

Walk away from the origin while speeding up..

Answer

Walk toward the origin while slowing down.

Question 16

How would you walk to create the graph shown?

Accepted Answer

Walk away from the origin at a constant speed

Answer

Stand still

Answer

Walk toward the origin at a constant speed.

Answer

Walk away from the origin at increasing speed.

Question 17

How would you walk to create the graph shown?

Accepted Answer

Walk away from the origin at increasing speed.

Answer

Walk away from the origin at a constant speed.

Answer

Walk away from the origin while slowing down.

Answer

Walk toward the origin at increasing Speed.

Question 18

How would you walk to create the graph shown?

Accepted Answer

Walk away from the origin while slowing down.

Answer

Walk away from the origin at a constant speed.

Answer

Walk toward the detector while slowing down.

Answer

Walk toward the detector while speeding up.

Question 19

How would you walk to produce the graph shown?

Accepted Answer

Walk toward the origin while slowing down.

Answer

Walk away from the origin at constant speed.

Answer

Walk toward the origin at a co0nstant speed.

Answer

Walk away from the origin while speeding up.

Question 20

What is the velocity of the car using the information from the graph?

Accepted Answer

10 m/s

Answer

20 m/s

Answer

40 m/s

Answer

50 m/s

Question 21

What is the speed of an object at rest?

Accepted Answer

0.0 m/s

Answer

1.0 m/s

Answer

-1.0 m/s

Answer

9.81 m/s

Question 22

When you look at the speedometer in a moving car, you can see the car's

Accepted Answer

instantaneous speed.

Answer

average distance traveled

Answer

instantaneous acceleration

Answer

average speed.

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