Physics Middle School

See how a block and tackle system can increase your mechanical advantage. You will need two broomsticks, a rope, and two helpers.

A. Give each helper a broom stick and have them stand facing each other holding the broomstick firmly in both hands in a horizontal position. The broomsticks should be at the same level, about two feet apart.

B. Tie one end of the rope to one of the broomsticks. (You may need to have one of your helpers hold the knot firmly in one hand as he or she holds the broomstick to help anchor it.)

C. Wrap the rope around the other broomstick, as in a simple pulley system, and pull on the free end of the rope. Your helpers should resist your pulling. What happens? Can you pull the broomsticks together?

D. Now weave the rope back over the first broomstick, so you have a double pulley. Pull on the free end. What happens now? Can you pull the broomsticks together? What is your mechanical advantage?

E. Try weaving the rope over the broomsticks one or two more times. Describe what happens, and state the mechanical advantage of each situation.

F. Write a summary of what happened and an explanation using the terms: force distance work mechanical advantage

MAKE SURE YOU ANSWER ALL THE QUESTIONS FROM LETTERS C-F

Answers

Answer 1

Answer:

I am pretty sure it is B or C. I am sorry if this does not help you and if its wrong. I am very sorry if this is not the answer you were looking for too.

Explanation:

I have read this a ton of times and I am pretty sure it is B or C. I am very sorry to the people who got the answer wrong for using my answer. I have read this a ton of times like I said those two make the most sense to me

so please read this a couple of times and the answer might be there for you!

Answer 2
the correct answer is b

Related Questions

Which physical activity can be non-locomotor or locomotor?
A( skipping
B( sprints
C( dribbling a ball
D( sit-ups

Answers

Answer:

A( skipping is a locomotor skill

B( sprints is a non-locomotor l think.

C( dribbling a ball is a locomotor skill. Not sure for this.

D( sit-ups are non-locomotor

A(skipping
Is the answer

Describe 3 factors an engineer should take into consideration when choosing material for building the pipes in a pipeline

Gr. 8
Think it has something to do with Viscosity, Density, and Pressure but not sure what

Answers

Answer: 1. Material being transported 2. The temperature of the material being transported 3. How long the pipes will be there (lifespan)

Explanation: 1. - The pipe builder should consider the material being transported to choose the correct material of the pipes to use, so they last long and can hold the material.

2. - Similar to 1, the pipe builder should consider the temperature of the material to choose the correct material of the pipes to use, so the pipes don’t break and function properly.

3. - If the pipe builder uses a material that can hold the material, that’s great! If that material will last a short time, it would not work if the pipes were to be used for a long time.


The things you said before about viscosity, density, and pressure are also correct. The correct answers are mainly talking about factors of the material being used in the pipes.
hope this helped :)

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