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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

Tamara transfers energy to the bike by moving the pedals.
Tamara transfers energy to the bike by moving the pedals.

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

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.
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
section F
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1 answer

Based on the provided information about Tamara's bike ride and how it relates to kinetic energy, here are the suggested answers to each question:

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

  • section A (she's speeding up rapidly)
  • section C (she speeds up more)

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

  • section B (she is going at a constant speed after speeding up)

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 (she is slowing down more and eventually stops, indicating she may have stopped pedaling).

These answers are based on the understanding of kinetic energy and the motion of the bike as described in the various sections.