3. When an object is in motion, it possesses what type of energy? (1 point)
13 answers
When an object is in motion, it possesses kinetic energy.
4. In the diagram below, two objects of the same size and mass are released from rest at the starting position. Object 1 was released before Object 2 was released. The diagram below shows the positions of Objects 1 and 2 a short time after both were released.
Which object in the figure has the least amount of kinetic energy?
(1 point)
Which object in the figure has the least amount of kinetic energy?
(1 point)
In the given information and diagram, the relative positions and velocities of Objects 1 and 2 are not mentioned, so it is not possible to determine which object has the least amount of kinetic energy.
4. In the diagram below, two objects of the same size and mass are released from rest at the starting position. Object 1 was released before Object 2 was released. The diagram below shows the positions of Objects 1 and 2 a short time after both were released.
I apologize, but as an AI text-based model, I am unable to see or interpret diagrams. In order to answer your question accurately, I would need a verbal description of the diagram or more specific information about the positions and velocities of Objects 1 and 2.
5. An object’s gravitational potential energy depends on the object’s mass, the strength of the gravitational field, and what other variable?(1 point)
Responses
the color of the object
the color of the object
the speed of the object
the speed of the object
the shape of the object
the shape of the object
the object's height from the ground
Responses
the color of the object
the color of the object
the speed of the object
the speed of the object
the shape of the object
the shape of the object
the object's height from the ground
The correct answer is the object's height from the ground. The gravitational potential energy of an object is directly proportional to its mass, the acceleration due to gravity, and the height at which the object is located above a reference point.
Rebecca climbs the ladder of a large water slide, waits her turn at the top, and then slides down the slide into a pool. Which answer best describes the energy changes during her time on the slide?(1 point)
Responses
kinetic → potential → kinetic
kinetic → potential → kinetic
kinetic → mechanical → potential
kinetic → mechanical → potential
potential → mechanical → kinetic
potential → mechanical → kinetic
potential → kinetic → potential
Responses
kinetic → potential → kinetic
kinetic → potential → kinetic
kinetic → mechanical → potential
kinetic → mechanical → potential
potential → mechanical → kinetic
potential → mechanical → kinetic
potential → kinetic → potential
The most accurate answer is: potential → kinetic → potential.
Initially, when Rebecca climbs the ladder, she gains potential energy due to her increased height from the ground. As she waits at the top of the slide, her potential energy remains constant.
When Rebecca slides down the slide, her potential energy decreases, and she converts it into kinetic energy, which is the energy of motion.
Once she reaches the bottom of the slide and enters the pool, her kinetic energy decreases, while her potential energy increases slightly as she comes to a stop in the water.
Initially, when Rebecca climbs the ladder, she gains potential energy due to her increased height from the ground. As she waits at the top of the slide, her potential energy remains constant.
When Rebecca slides down the slide, her potential energy decreases, and she converts it into kinetic energy, which is the energy of motion.
Once she reaches the bottom of the slide and enters the pool, her kinetic energy decreases, while her potential energy increases slightly as she comes to a stop in the water.
are you sure
I apologize for the confusion. You're correct; my response was incorrect. The correct answer is: kinetic → potential → kinetic.
As Rebecca slides down the slide, her initial energy is in the form of kinetic energy due to her motion. As she moves upward on the slide, her kinetic energy decreases, and it converts into potential energy due to her increased height from the ground. Then, as she slides down again, her potential energy decreases, and it converts back into kinetic energy.
As Rebecca slides down the slide, her initial energy is in the form of kinetic energy due to her motion. As she moves upward on the slide, her kinetic energy decreases, and it converts into potential energy due to her increased height from the ground. Then, as she slides down again, her potential energy decreases, and it converts back into kinetic energy.
Kim is upstairs, but walks downstairs to the kitchen for a snack. Which statement correctly describes the types of energy she has at the top of the stairs and as she walks down the stairs?(1 point)
Responses
kinetic energy at the top of the stairs; potential energy as she walks down
kinetic energy at the top of the stairs; potential energy as she walks down
potential energy at the top of the stairs; potential energy as she walks down
potential energy at the top of the stairs; potential energy as she walks down
kinetic energy at the top of the stairs; kinetic energy as she walks down
kinetic energy at the top of the stairs; kinetic energy as she walks down
potential energy at the top of the stairs; kinetic energy as she walks down
potential energy at the top of the stairs; kinetic energy as she walks down
Question 11
Responses
kinetic energy at the top of the stairs; potential energy as she walks down
kinetic energy at the top of the stairs; potential energy as she walks down
potential energy at the top of the stairs; potential energy as she walks down
potential energy at the top of the stairs; potential energy as she walks down
kinetic energy at the top of the stairs; kinetic energy as she walks down
kinetic energy at the top of the stairs; kinetic energy as she walks down
potential energy at the top of the stairs; kinetic energy as she walks down
potential energy at the top of the stairs; kinetic energy as she walks down
Question 11
The correct answer is: potential energy at the top of the stairs; kinetic energy as she walks down.
When Kim is at the top of the stairs, she has potential energy due to her height from the ground. As she walks down the stairs, her potential energy decreases, and it gets converted into kinetic energy, which is the energy of motion. Therefore, she has potential energy at the top of the stairs and kinetic energy as she walks down.
When Kim is at the top of the stairs, she has potential energy due to her height from the ground. As she walks down the stairs, her potential energy decreases, and it gets converted into kinetic energy, which is the energy of motion. Therefore, she has potential energy at the top of the stairs and kinetic energy as she walks down.
1 answer