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12. Acceleration

Last updated about 4 years ago

18 questions

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Question 1

1.

Acceleration is a change in

speed

velocity

distance

Question 2

2.

In which case do you think acceleration is involved?
A train that is traveling at a constant speed of 500 mi/hr in a straight line or a person that is walking in circles at a constant rate of 1 step per second.

The person because he is changing direction

The train because it is going really fast.

Both because they are both moving

Neither because they are both moving at a constant speed.

Question 3

3.

Acceleration is a scalar quantity

True

False

Question 4

4.

Explain what an acceleration graph tells you, and how do you construct one.

 The graph below describes the motion of a fly that starts out going left. 

Question 5

5.

Identify section(s) where the fly moves with constant velocity

 21-22 s 

 18-20 s 

 2-5 s 

Question 6

6.

Identify section(s) where the fly moves right slowing down.

18-20 s

15-18 s

Question 7

7.

When is the fly at rest?

2-5 s

21-22 s

Question 8

8.

Question 9

9.

Select the graph that matches the SPEED statement.

An object is moving at a constant speed in a d/t graph
This object is not moving (in a d/t graph)
The speed of this object is decreasing
An object moves away but comes back to where it was

Question 10

10.

Select the graph that matches the ACCELERATION statement.

An object is accelerating
This object has stopped (shown in an acceleration graph)
An object is traveling at a constant speed (in an acceleration graph)
An object is decelerating

Question 11

11.

Match the graph to the statement.

Item 1

Question 12

12.

Match the graph to the statement.

Question 13

13.

Graph the speed and the acceleration (both are line graphs) given the data attached.

Question 14

14.

Graph the following "story" using a LINE graph:
A car leaves home accelerating for 10 min until it reaches a speed of 15 m/min. Then it travels for 10 minutes at that speed. As the journey continues, the car accelerates for 10 minutes until it reaches a speed of 25 m/min. At that point the car slows down, taking 20 minutes to come to a full stop.

Question 15

15.

A car leaves home accelerating for 10 min until it reaches a speed of 15 m/min. Then it travels for 10 minutes at that speed. As the journey continues, the car accelerates for 10 minutes until it reaches a speed of 25 m/min. At that point the car slows down, taking 20 minutes to come to a full stop.
Think! what is the final velocity, the initial velocity and the time for this particular segment?

What is the rate of acceleration between 0 min and 10 min?

Question 16

16.

A car leaves home accelerating for 10 min until it reaches a speed of 15 m/min. Then it travels for 10 minutes at that speed. As the journey continues, the car accelerates for 10 minutes until it reaches a speed of 25 m/min. At that point the car slows down, taking 20 minutes to come to a full stop.
Think! what is the final velocity, the initial velocity and the time for this particular segment?

What is the rate of acceleration between 20 min and 30 min?

Question 17

17.

A car leaves home accelerating for 10 min until it reaches a speed of 15 m/min. Then it travels for 10 minutes at that speed. As the journey continues, the car accelerates for 10 minutes until it reaches a speed of 25 m/min. At that point the car slows down, taking 20 minutes to come to a full stop.
Think! what is the final velocity, the initial velocity and the time for this particular segment?

What is the rate of acceleration between 30min and 50 min?

Question 18

18.

Graph this movement using a LINE graph. Make sure you label your axis.
A train travels at 30 miles/hour for 5 seconds. It speeds up to 50 miles/hour in 20 seconds. Then the train brings its speed back down to 30 miles/hour in 10 seconds.

As you graph, THINK - Did the car start at zero?

 0-2 s 

 15-18 s

21-22 s

2-5 s

0-2 s

15-18 s

0-2 s

18-20 s

Which acceleration graph accurately represents the movement of the fly

A

B

C

It is very cold in the Antarctic. A penguin stays huddled with a group of other penguins to stay warm.

Georgy ran at a constant speed of 3 m/s.

Andrea increases her speed from 0 m/s to 5 m/s in order to not be late to class.

Michael walks at a speed of 1 m/s from science class to math class.

A fox looks for a burrow to sleep in a speed of 2 m/s. He stops briefly when he hears a noise. Then he resumes looking at 2 m/s. Finally the fox finds a burrow and curls up to take a nap.

An eagle flies from its nest at a speed of 4 m/s. She see a mouse and increases her speed to 8 m/s. She loses sight of the mouse and turns around and flies back to its nest at a speed of 9 m/s.

Angel walks from class to the cafeteria. He increases his speed from 0 m/s to 2 m/s. Angel hears a scholar yelling his name so he slows down and eventually stops. Once his friend catch up he increases his speed back to 2 m/s.

A wolf increases its speed from 0 m/s to 6 m/s. It then slows down its speed to 4 m/s and stays moving at 4 m/s