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Simple Machines
Page 5
Questions (1,017)
A student uses a pulley to lift a log. In 1–2 sentences, explain how she can calculate the pulley’s efficiency
3 answers
asked by
Colleen Kelley
235 views
Calculate the efficiency of a machine with velocity ratio of 5 if a load of 100N is to be lifted by an effort of 50N
4 answers
asked by
Adekola
730 views
A 225 kg box is loaded onto a truck by pulling it up an inclined plane (10 m hypotenuse difference) by a force that is parallel
3 answers
asked by
Matt
840 views
a ramp is 0.5m high and has a slope of 4m long.what is the mechanical advantage?
5 answers
asked by
mel
1,071 views
What happens when you use a lever to lift a box?
2 answers
asked by
Colleen Kelley
216 views
The diameter of the head of screw nail is 4 cm and it's pitch0.5 cm . If the nail can magnify the applied effort 20 times,
3 answers
asked by
Suru
157 views
A machine lift a load of 500N what is the effort of the machine if the velocity ratio move vertically upward at 30° and
4 answers
asked by
Adedeji Bashiru
233 views
The figure shows a pulley system used to lift a load of 9600N lusing on effort 2400 N through distance of 20m.calculate the
4 answers
asked by
Elizabeth
401 views
A pulley has a mechanical advantage of 1.
What does this tell you about the size and direction of the input and output forces?
7 answers
asked by
Grace
1,002 views
Efficiency of a single fixed pulley is 85%.what effort is needed to lift a load of 85kgf using it?
3 answers
asked by
Ishpreet
1,789 views
A simple machine with an efficiency of 75% lift of a load of 5000N.When a force of 500N is applied to it,Calculate the velocity
4 answers
asked by
Angela
1,408 views
a simple machine that only changes the direction of the applied force?
7 answers
asked by
Meek
1,679 views
A block and tackle with a velocity ratio of 5 is used to raise a mass of 25kg through a vertical distance of 400M at a steady
3 answers
asked by
Wisdom
511 views
When you want to pull downward to lift something, the main advantage of passing a rope upward and through a single pulley,rather
3 answers
asked by
April
1,302 views
how much effort is needed to lift 300 newtons with a pulley?
If by effort you mean force, then the answer is 300 N (300 Newtons).
3 answers
asked by
carla
785 views
Imagine a person is lifting a refrigerator using a lever. What is the purpose of using the lever?
3 answers
asked by
alexslver
80 views
The mechanical advantage of a wheel and axle is the radius of the wheel divided by the radius of the axle.
What is the mechanical
3 answers
asked by
kali
116 views
A wheelbarrow can be used to help lift a load, such as a pile of dirt, and then push the load across a distance. What two simple
3 answers
asked by
kali
127 views
What are two examples of Class two levers? Choose all that apply
a scissors b wheelbarrow c hammer and nail d bottle opener e
3 answers
asked by
kali
229 views
a simpe wheel and axle is used to lift bucket of water out of a well. the radii of the wheel and axle are 20 cm and 4 cm,
3 answers
asked anonymously
127 views
Which example represents a class two lever
3 answers
asked by
Tooo
398 views
Use the picture to answer the question what is accomplished by the simple pulley
9 answers
asked by
Bruv
426 views
In this pulley system, the pulleys will _____ the mechanical force required to lift the block and will change the _____.
A.)
3 answers
asked by
goodog
216 views
Sparkle Bunny uses the wedge because it is a simple machine that provides a mechanical advantage. What is the mechanical
3 answers
asked by
A
237 views
Pulleys and Inclined Planes Quick Check
3 of 43 of 4 Items Question Use the image of the pulley to answer the question. An
19 answers
asked by
who dat
438 views
Which advantage does a screw have over a nail? (1 point)
Responses A screw allows the force to be applied in a more convenient
3 answers
asked by
who dat
259 views
In 1–2 sentences, describe an efficient simple machine.
3 answers
asked by
Colleen Kelley
326 views
To directly lift a crate 0.6 meters, Joaquin would need to apply 312 newtons of force. Instead, he uses a lever with a
3 answers
asked by
Colleen Kelley
259 views
Harold uses an inclined plane to move a washing machine from the sidewalk into his house. The vertical distance from the
3 answers
asked by
Colleen Kelley
528 views
How can you calculate the mechanical advantage a simple machine provides? (1 point)
Responses divide the output force by the
3 answers
asked by
X
297 views
How can you calculate the mechanical advantage a simple machine provides?
3 answers
asked by
Kells
400 views
What are people trying to increase when using simple machines?
-mechanical advantage -applied mechanical force -the distance over
1 answer
asked by
Lil
314 views
A block and tackle of 6 pulley is used to raise a load of 30N steadily through a height of 3m. If the work done against friction
3 answers
asked by
Anonymous
282 views
A simple wheel and axle is used to lift a bucket of water from a well the radii of the wheel and axle are 20cm and 4cm
4 answers
asked by
ENU
471 views
a machine with a velocity ratio of 30 moves a load of 3000N when an effort of 200N is applied. The efficiency of the machine is
1 answer
asked by
Miracle
304 views
A machine with velocity ratio 5 was used to raise a load of 1.2kg mass through a height of 10m. If the work done is 800j, find
3 answers
asked by
Ernest
474 views
An inclined plane reduces the effort force by
a. reducing the work. b. reducing the effort distance. c. increasing the work. d.
4 answers
asked by
Riya Singh
1,575 views
A simple machine with an effort of 30N lifted a load of 6N. Calculate the mechanical advantages
3 answers
asked by
Anonymous
575 views
A block and tackle having a velocity ratio of 5 is used to raise a load of 400N through a distance of 10m. If the workdone
3 answers
asked by
Abraham
760 views
In a simple machine the energy input is 120J. If the efficiency of the machine is 80%, calculate the energy output of the
2 answers
asked by
Derrick
600 views
What do you mean by mechanical advantage if simple machine is2
3 answers
asked by
Anonymous
424 views
Which type of simple machine reduces the amount of input force needed?
4 answers
asked by
James
1,229 views
A load of 500N is raised through 5m by a machine when it's effort E moves simultaneously through a distance of 25m along it's
4 answers
asked by
Yahya Shekha
1,635 views
Diana is moving into a new apartment. She wants to get a heavy chair up to her second-floor apartment, but it will only fit
7 answers
asked by
Alexa
1,667 views
A machine has a velocity ratio of 6 and efficiency of 80%.What would be needed to lift a load of 80kg with the aid of the
3 answers
asked by
value
667 views
A pulley system has a velocity ratio of 4 and an efficiency of 80%.calculate the value of the effort required to raise the load
5 answers
asked by
Sharon
2,371 views
alever is used to lift a heavy load. when a to-n force pushes one end of the lever down 1.2m the load rises 0.2m. show the
4 answers
asked by
hattie
1,570 views
Which simple machine has more mechanical advantage a pulley or a inclined plane?
PlEASEE HELP SUPER CONFUSED
4 answers
asked by
Jordan
723 views
A painter uses a fixed pulley to raise a 1-k can of paint a distance of 10 m,what is the ima??
4 answers
asked by
Liam
2,230 views
wer learning about levers i science and i just get confused with the third class levers can some one explain how you figure out
3 answers
asked by
bills luver
356 views
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