MULTIPLE QUESTION! Please don't just answer for points if you don't know this isn't for you I really do need this, so don't waste my points thank you. Question 1 (3 points)
Two children are waiting to go down a slide. The first child goes down and then stays sitting at the bottom of the slide. If there is no friction involved and all of the mechanical energy is conserved what would happen to the energy of the second child from the top to the bottom of the slide?

Question 1 options:

Potential energy from the top of the slide would turn to Kinetic energy as they slide down, in turn the kinetic energy of the child coming down the slide will be given to the child sitting at the bottom when they collide.

All energy stays the same, it does not change

Kinetic energy would turn in to Potential energy at the bottom

The energy is destroyed

Question 2 (3 points)
Changing which factor would NOT influence the total kinetic energy of a moving shopping cart?

Question 2 options:

Decreasing the mass or the speed of the cart

increasing the rate of speed you push it down the aisle

Turning a different direction at the end of the aisle while continuing to move at the same speed.

increasing the mass of the cart by adding items while moving

Question 3 (3 points)
How can you increase the gravitational potential energy (GPE) of an empty shoe box on the middle shelf of a bookcase?

Question 3 options:

add items to the box and raise it to a higher shelf

add items to the box to increase its mass on the self it is on

raise the box to a higher shelf

all of the options listed here will increase the GPE

Question 4 (3 points)
Mechanical energy is defined as

Question 4 options:

the energy of motion and position, which is represented by the formula KE + PE = ME

Energy of motion

potential energy

Energy of machines and tools

Question 5 (3 points)
Which is an example of gravitational potential energy only.

Question 5 options:

an apple resting on the teacher’s desk

a puppy walking around under a tree

a rolling skateboard going down a hill

an elevator moving up to the 3rd floor

Question 6 (3 points)
When swinging on a park swing when is your kinetic energy the least?

Question 6 options:

Kinetic energy is the least when you are halfway between the highest point of the swing and the bottom.

Kinetic energy is least as you are moving past the bottom of the swing and going back up to the highest point.

Kinetic energy is least at the at the top of the swing when you are still for a moment just before falling again.

Kinetic energy is least at the lowest point of your swing when you are closest to the ground.

Question 7 (3 points)
In the EXPLORE section of your lesson 4.08 on Potential energy there were several animations to watch that provided a graphic illustrating how the PE and KE in a system changed as a skateboarder rides a halfpipe or a pendulum moves, why did the bar for the total energy remain constant?

Question 7 options:

all answers given are correct

This is because no energy is being created or destroyed in this system

Energy is converted from kinetic to potential and potential to kinetic, but the total amount of energy is conserved.

Because these models do not take into account the impact of friction and air resistance and are helping to solidify the concept of energy conservation and that the total mechanical energy remains constant in that model.

Question 8 (3 points)
Conservation of mechanical energy is defined as

Question 8 options:

Potential energy added to kinetic energy

Law of conservation of energy

The sum of the kinetic and potential energies of an object remains a constant value unless there are forces acting on the object that cause a loss of energy overall, such as friction and air resistance

Energy of motion

Question 9 (3 points)
Studying energy involves determining the amount of energy an object has. This energy can be kinetic or potential, or it could be a combination of both. Consider a 2-kg bowling ball sits on top of a building that is 40 meters tall. It falls toward the ground. Think about the amount of kinetic energy the bowling ball has as it falls, select when the ball would have the most kinetic energy from the choices given.

Question 9 options:

as it is halfway through the fall and it has reached a speed of 19.8 meters per second.

after it hits the ground and is no longer moving.

just before it is to hit the ground and it has reached a speed of 28 meters per second.

as it sits on top of a building that is 40 meters tall.

Question 10 (3 points)
Which is an example of an object increasing its kinetic energy

Question 10 options:

an airplane after parking at the gate on the airport runway

a train that is no longer moving and has come to a complete stop at the station platform so people can board

a rocket resting in the docking claps just before the launch sequence it to begin

a jogger running faster after spotting a mountain lion following him on the trial

How do you think advertising directed at children influences what they buy or ask parents to buy

Acommunity park it was friday, and as she walked home from school, samara thought about what she would do that weekend. everyone would be at the fund-raiser for new sports equipment at the high school on saturday. as she was trying to remember if any good movies were coming out this weekend, she noticed a group of kids playing tag. samara thought they looked comical running around in circles on a small plot of land between two houses. “well, they certainly seem happy,” thought samara as the light turned and she crossed the street. on the opposite side of cherry street, samara saw mr. peters sitting on a bench. he was reading his newspaper as the heavy traffic of the town’s main thoroughfare whizzed by him. she wondered how he could concentrate. later, as she took the last turn onto her street, samara saw her neighbor planting her annual vegetable garden. every year, mrs. yang grew eggplant, cucumbers, and bok choy, because that’s all she had room for. “the garden looks good so far, mrs. yang,” samara called. “ you, dear,” mrs. yang said. “you know, if i had room, i would plant enough vegetables to feed the entire neighborhood! my mother had a garden that was one square acre when i was a little girl in korea.” as samara nodded and waved goodbye, she started thinking about what she had seen on her walk home that day. she realized that pine grove did not have any open public spaces where everyone could go to relax and enjoy nature. the only unused space was a vacated plot on cedar avenue that was completely overgrown. suddenly, samara had a great idea. she decided to spend her summer campaigning for a new community park. the only problem was that she had no idea where to start. that evening, she went to the library and learned about what she would need to do in order to get the idea in front of the town zoning board. it was all a little intimidating, but wanda, the reference librarian, samara break it down into manageable steps. when samara mentioned the cedar avenue plot, wanda’s eyes lit up. “that is a perfect spot,” wanda said. “it’s right in the middle of town, and better yet, the town owns it.” samara spent many afternoons over the next few weeks at the library with wanda and a few other librarians drawing up a detailed plan to present to town officials. samara and the librarians even planned and priced out irrigation necessary for the area that was designated as a garden. when the day of the zoning board meeting arrived, samara felt nervous, but wanda and the other librarians were there for moral support. samara thought she at least sounded confident as she presented her idea to the board. when she finished her presentation, she was ready to wait patiently for an answer; wanda told her that this kind of decision might take weeks, so samara was surprised when the board members asked her to stay while they deliberated. the president of the board explained that samara’s presentation had been the last order of business for the day, and he wanted his board to be able to agree on one thing before they left. after about 15 minutes, samara was informed that the community park had been approved. samara had been telling her neighbors and friends about the park from the moment she thought of it, and it seemed as though everyone wanted to be a part of making her vision a reality. as soon as her idea was approved, samara called a meeting for anyone interested in collaborating. at the meeting, residents voted on what would be included on the land: a playset for young children and one for older children, a swing set, several park benches, and a dog run. it was also decided that there would be a cooperative organic vegetable garden and an herb garden at the north end of the park. residents agreed that mrs. yang would manage the gardens. at wanda’s suggestion, samara asked a representative from a nearby horticultural society to come and advise the group on the design of the park, the best native shrubs to plant, and where to put them. samara also asked local businesses to sponsor the park by the square foot so that the community would be able to afford equipment and plants. surprised by the response, samara went to the bank to open an account where the surplus would be saved for next spring. in a few weeks’ time, the space had been cleared and residents were beginning to roll out sod and plant small vegetable plants and summer flowers. by midsummer, the community was able to enjoy the new, peaceful space. samara was happy to have been part of creating not only a beautiful space, but a common area where residents could come together. which conclusions can be drawn from the last paragraph of this story? select each correct answer. a.wanda is eager to begin gardening with samara and mrs.yang. b.samara's family proudly joins the park staff. c.samara feels a sense of accomplishment. d.samara will run a workshop for less-experienced gardeners. e.business owners in pine grove support its beautification.

What is the literal meaning of alive at the village of round and square houses by ann grifalconi