Torque

Torque

Name: ________________________

Objectives:

· Describe the factors that determine whether two objects will balance each other

· Predict how changing the position of a mass on the balance will affect the motion of the balance

· Use a balance to the find the masses of unknown objects

1. Open the PhET Simulation Balancing Act

2. Choose “Intro” tab. Play around with the simulation for a few minutes to understand/ explore the functionalities of the different components.

3. To check if the wooden board is balanced, remove supports under the board by toggling the switch at bottom of the screen to right.

Case-1:

Place 5 kg fire extinguisher at 2 m mark to the left of the pivot. Where should you place the 10 kg trash can to balance the board? Show your calculations.

Case-2:

Consider this situation without using the simulation:

1. Predict what will happen when the supports are removed and explain your reasoning.

2. Predict what will happen if the 80 kg adult was further from the pivot (more right) and explain your reasoning.

3. Predict what will happen if the 30 kg child was closer to the pivot (more right) and explain your reasoning.

4. Test your predictions in the Balance Lab. Make notes about any ideas you have that need to be changed.

5. What are some rules you could use to make predictions for other situations where masses are on a balance?

6. Test your rules with some situations in the lab. Make corrections if needed, then show evidence that your rules work.

Finding unknown masses

Choose “Balance Lab” tab. Select the following options in right corner of the screen:Mass Labels, Level, RulersIn the “Bricks” section on the right of the screen, click on the right arrow. Keep on clicking to the right until you see “Mystery Objects”.

Find out the mass of each of the Mystery Objects “E”, “F”, and “G” by balancing each of these against the bricks of known masses.

For each Mystery Object, paste a screenshot of balanced seesaw and show all calculation steps.

Mystery Object “E”

Screenshot of balanced seesaw:Calculations:

Mystery Object “F”

Screenshot of balanced seesaw:Calculations:

Mystery Object “G”

Screenshot of balanced seesaw:Calculations:

2

image3.jpeg

image4.jpeg

image1.jpeg

image2.png

Get 20% Discount on This Paper
Pages (550 words)
Approximate price: -

Try it now!

Get 20% Discount on This Paper

We'll send you the first draft for approval by at
Total price:
$0.00

How it works?

Follow these simple steps to get your paper done

Place your order

Fill in the order form and provide all details of your assignment.

Proceed with the payment

Choose the payment system that suits you most.

Receive the final file

Once your paper is ready, we will email it to you.

Our Services

Ace Writing Center has stood as the world’s leading custom essay writing services providers. Once you enter all the details in the order form under the place order button, the rest is up to us.

Essays

Essay Writing Services

At Ace Writing Center, Nowadays, students normally have extremely busy schedules. You will note that some of them have to take on some evening or weekend jobs in order to get some income that can help them to sustain in college or in the university. This can deny them a chance to write all the essays given. Others usually get bombarded with a lot of work by their lecturers. This can still delay such students from working on all their essays. However, some of them usually try to work on all these essays but end up delivering their work late. This can prevent them from graduating since most lecturers are strict on deadlines. If you want to write a business essay, the wise way is to hire an outstanding essay writing service like us, so that you can get the best results. If you are keen, you will note that many companies usually overcharge their customers. Some of them are there only to make money. And in reality, they really don’t care to build a long term commitment with students. You should not choose such companies. You should take your time and choose a reliable company to work with. Ace Writing Center is the ultimate solution for you. We have been offering our writing service for more than 7 years. This is a clear indication that you will get quality essay writing service. We have a wide range of writers who can work on any business essay that you might have. We believe in doing extensive research so that we can provide quality work to all our clients. .

Admissions

Admission and Business Papers

Have you ever had to write an admission essay for college? The majority of students face the same issues when applying to a university or college and many in such situations decide they need professional help to cope with this matter. They get in a situation when the deadline keeps coming closer but lack motivation to start because they are just not sure if their writing skills are strong enough. We have a solution for you! Ace Writing Center is the best admission essay writing service with a large professional team and years of experience in providing high-quality papers to students of all levels and faculties. The mission of our team is to help students make their dreams of entering a good college come true and that’s what we offer!.

Editing

Editing and Proofreading

Sometimes all the words for your paper just flow out of your mind and into your fingers. You type quickly at your keyboard and there they are, your beautiful words right there on the screen. But you have no idea how to polish it up. You may be wishing there was a paper writing service that offered this type of writing service. Look no more! Here at Ace Writing Center, we offer you an editing and proofreading option that you can't find anywhere else..

Coursework

College Essay Writing

In case you are familiar Ace Writing Center, you know the way to distinguish a better company from a cheap one exactly. First of all, poor service website does not have a sufficient support. We think support team is an essential part of success; it has to answer all clients’ questions and be a connecting link between clients and their writers. On our web-service you will get answers about anything you need and your writer will receive all your instructions, assignments and requirements exactly and swiftly. A writing service that we run has got a flexible pricing system that will save you from senseless wastes and many bonus systems that let you sparing money for something important for you.

See all services