1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kramer
3 years ago
13

PLEASE HELP ASAP 80 POINTS

Physics
2 answers:
attashe74 [19]3 years ago
8 0

Answer:

Science experiment: Inclined plane

(Your name)

8th grade AP Science

(Teachers name)

(todays date or due date)

Hypothesis:

If the height of the inclined plane increases, then the IMA, AMA will increase And efficiency will decrease. This will be because a sharper incline will require more energy over a shorter distance than a shallow incline.

Trial: 1

Height: 11.15 Cm

Length: 56.60 Cm

Mass: 500 g (4.90 N)

Effort Force: 1.35 N

AMA: 3.63

IMA: 5.08

Efficiency: 71.46

Trial: 2

Height: 17.40 Cm

Length: 56.60 Cm

Mass: 500 g (4.90 N)

Effort force: 1.75 N

AMA: 2.80

IMA: 3.25

Efficiency: 86.15

 

Questions for “presenting your outcome”:

How does the length to height ratio (the IMA) of trial 1 compare to trial 2?

Why is the actual mechanical advantage less than the ideal mechanical advantage in each of the trials?

If a machine was 100% efficient, how would the AMA compare to the IMA?

Answers to those questions:

1: The IMA in trial 1 is greater than in trial 2 because an inclined plane with a shallower rise will have a higher ideal mechanical advantage because less effort can be applied over a greater distance in a shallow rise than in a steep one.

2: IMA of an inclined plane does not account for things like gravity weighing an object down and friction being generated between the object and the plane, among other factors. Because both of the listed factors are things that we know will affect the object being moved up the inclined plane, we can predict that the AMA will be lower because outside factors acting on the object make the inclined plane less efficient.  

3: If a machine was 100% efficient, the IMA and AMA would be congruent. This is because for a medicine to be 100% efficient there would have to be no outside forces acting on the object. The ideal mechanical advantage does not calculate for outside forces, so with a machine having to be a place where exactly 0 outsides forces are present to be working at 100% efficiency, then common logic would say that the IMA and AMA would have to be the exact same.

 

Questions for the “answer portion of the assignment”:

According to your data, was your hypothesis correct? (Be sure to refer to your data when answering this question.)

Summarize the conclusions that you can draw from this experiment. Use the questions above to guide your ideas.

Summarize any difficulties or problems you had in performing the experiment that might have affected the results. Describe how you might change the procedure to avoid these problems.

Give at least three examples from everyday life where an inclined plane is used to reduce the effort force needed to accomplish a task.

Brainliest mabye? also k now there

is more to this experiment, but it has a hard cap of 5000 charcters.

Download pdf
weqwewe [10]3 years ago
4 0

I'm sorry but I'm abouta fail a test if I dont d ig.i this for the points

You might be interested in
The brakes application to a car produce an acceleration of 6ms2 in the opposite direction to the motion .If the car takes 2 seco
Anna [14]

Answer:12 meter

Explanation:

acceleration(a)=6m/s^2

Time(t)=2 seconds

Distance =(a x t^2)/2

Distance =(6 x 2^2)/2

Distance=(6 x 2 x 2)/2

Distance=24/2

Distance =12

Distance is 12 meters

7 0
3 years ago
A constellation’s changing position in the sky, at the same time of the evening, over a period of several weeks is evidence that
Goryan [66]

Answer:

d- Earth revolves around the sun.

Explanation:

Earth rotation can be defined as the amount of time taken by planet earth to complete its spinning movement on its axis.

This ultimately implies that, the rotation of earth refers to the time taken by earth to rotate once on its axis. One spinning movement of the earth on its axis takes approximately 24 hours to complete with respect to the sun.

On the other hand, earth revolution can be defined as a complete trip along a path around the sun. This path is known as an orbit and it typically takes the Earth 365¼ days to complete it's journey around the Sun.

When a constellation (stars) changes its position in the sky, at the same time of the evening and over a period of several weeks; it ultimately implies or is an evidence that Earth revolves around the sun.

8 0
3 years ago
The half-life of the radioactive element beryllium-13 is 5 × 10-10 seconds, and half-life of the radioactive element beryllium-1
telo118 [61]
<h2>Answer: The half-life of beryllium-15 is 400 times greater than the half-life of beryllium-13.</h2>

Explanation:

The half-life h of a radioactive isotope refers to its decay period, which is the average lifetime of an atom before it disintegrates.

In this case, we are given the half life of two elements:

beryllium-13: h_{B-13}=5(10)^{-10}s=0.0000000005s

beryllium-15: h_{B-15}=2(10)^{-7}s=0.0000002s

As we can see, the half-life of beryllium-15 is greater than the half-life of beryllium-13, but how great?

We can find it out by the following expression:

h_{B-15}=X.h_{B-13}

Where X is the amount we want to find:

X=\frac{h_{B-15}}{h_{B-13}}

X=\frac{2(10)^{-7}s}{5(10)^{-10}s}

Finally:

X=400

Therefore:

The half-life of beryllium-15 is <u>400 times greater than</u> the half-life of beryllium-13.

8 0
3 years ago
What is the kinetic energy of a 50-kg child running to catch the school bus at
Vinvika [58]

Answer:

Option C

100 J

Explanation:

Kinetic energy, KE is given by

KE=0.5mv^{2} where m is the mass and v is the velocity

Substituting 50 Kg for mass, m and 2 m/s for velocity v then we obtain

KE=0.5*50*2^{2}=100 J

Therefore, the child's kinetic energy is equivalent to 100 J

6 0
3 years ago
Read 2 more answers
When nasa launched the kepler spacecraft in 2009 what was its primary mission
DiKsa [7]
The Kepler mission is specifically designed to survey a portion of our region of the Milky Way galaxy<span> to discover dozens of Earth-size planets in or near the </span>habitable zone<span> and determine how many of the billions of stars in our galaxy have such planets</span>
3 0
3 years ago
Other questions:
  • Which statement best defines a morpheme?
    14·2 answers
  • What's the difference between an axon and a dendrite
    11·1 answer
  • In 1996, NASA performed an experiment called the Tethered Satellite experiment. In this experiment a 2.30 104-m length of wire w
    10·1 answer
  • I need a correct answer plzzzzzzzzzzzzzzzzzzzz
    11·1 answer
  • Help pls ASAP thank you
    7·2 answers
  • Calcula qué tan lejos está Saturno del Sol, sabiendo que la luz solar necesita una hora y veinte segundos para llegar a Saturno.
    9·1 answer
  • How many dots belong in the electron dot diagram of a boron (B) atom?
    9·1 answer
  • In which of these states is the age of consent 18 years old?
    6·1 answer
  • A circuit has an impedance of 5 ohms and a voltage of 100 volts. What is the current flow?
    10·1 answer
  • what current flows through a 2.54cm diameter rod of pure silicon that is 20.0cm long ,when 1.00x10000V is applied to it
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!