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Tamara rides her bike around her neighborhood.

For the first minute, she speeds up rapidly.
For the next 4 minutes, she goes a constant speed.
For the next 1 minute, she speeds up more.
For the next 2 minutes, she goes a new constant speed.
For the next 2 minutes, she slows down.
For the last 2 minutes, she slows down more and eventually stops.
Think about how the different parts of Tamara's trip relate to kinetic energy.

Study the graph and then answer the questions.



Question 1
a. In which section or sections is the bike's kinetic energy increasing?

You might need to choose more than one answer.

(1 point)
Responses

section A
section A

section B
section B

section C
section C

section D
section D

section E
section E

section F
section F
Question 2
b. In which section does the bike have the highest constant kinetic energy?(1 point)
Responses

section A
section A

section B
section B

section C
section C

section D
section D

section E
section E

section F
section F
Question 3
c. Describe the bike's motion in section E.(1 point)
Responses

The bike is getting slower.
The bike is getting slower.

The bike is getting faster.
The bike is getting faster.

The bike is moving at a constant speed.
The bike is moving at a constant speed.

The bike is not moving.
The bike is not moving.
Question 4
d. What is similar about section E and section F?(1 point)
Responses

The kinetic energy is increasing.
The kinetic energy is increasing.

The kinetic energy is decreasing.
The kinetic energy is decreasing.

The kinetic energy is staying the same.
The kinetic energy is staying the same.

The kinetic energy goes down and then up.
The kinetic energy goes down and then up.
Question 5
e. Throughout the bike ride, what causes the bike to move?(1 point)
Responses

The bike is swinging from a pendulum.
The bike is swinging from a pendulum.

The bike pulls energy out of the ground.
The bike pulls energy out of the ground.

The Earth's gravitational pull makes it move.
The Earth's gravitational pull makes it move.

Tamara transfers energy to the bike by moving the pedals.
Tamara transfers energy to the bike by moving the pedals.
Question 6
f. In which section is it most likely that Tamara stopped pedaling and allowed the bike to coast to a stop?(1 point)
Responses

section A
section A

section B
section B

section C
section C

section D
section D

section E
section E

section F

1 answer

Based on the information provided, here are the answers to your questions regarding Tamara's bike ride and its relation to kinetic energy:

Question 1
a. In which section or sections is the bike's kinetic energy increasing?

  • Responses:
    • section A (Tamara speeds up rapidly)
    • section C (Tamara speeds up more)

Question 2
b. In which section does the bike have the highest constant kinetic energy?

  • Responses:
    • section D (Tamara goes at a new constant speed)

Question 3
c. Describe the bike's motion in section E.

  • Responses:
    • The bike is getting slower.

Question 4
d. What is similar about section E and section F?

  • Responses:
    • The kinetic energy is decreasing.

Question 5
e. Throughout the bike ride, what causes the bike to move?

  • Responses:
    • Tamara transfers energy to the bike by moving the pedals.

Question 6
f. In which section is it most likely that Tamara stopped pedaling and allowed the bike to coast to a stop?

  • Responses:
    • section F (as she is slowing down and eventually stops)

Feel free to reach out if you need further clarification or assistance!