Question

Which of these statements is correct about Newton's second law of motion?

It states the meanings of force, mass, and acceleration.

It analyses the meanings of force, mass, and acceleration.

It decribes the relationship between force, mass, and acceleration.

It explains the relationship between force, mass, and acceleration.

Answer 1

II. A force is equal to mass times acceleration: F = ma
This equation shows that gravity, mass, and acceleration are related. The greater the mass of an object, the greater the force necessary to move it. For example, suppose you wanted to push a pencil across a desk with your finger. This would not require too much force. If you applied the same force to a brick, however, the brick would not move. In space, gravity is the universal force that causes objects to accelerate. In space travel, rockets must be able to lift off the ground.

This requires some hefty lift capacities to create enough force to move them upward and away from Earth.

Answer 2

It is whether c or d, but I am having trouble telling which one it is >.>

Answer 3

Confusing question..(describe or explain) ...?? :/

Answer 4

@Ryaan exactly why I was confused :P

Answer 5

What's the difference between describing or explaining ? :P

Answer 6

describing and explaining*

Answer 7

You would explain why you did something, but describe a house.

Or, in the case of diabetes, you would explain what causes diabetes, but describe the results of not keeping the disease under control.

Answer 8

To describe is to tell or depict in written or spoken words--e.g., "diabetes is a disorder of carbohydrate metabolism, usually occurring in genetically predisposed individuals, characterized by inadequate production or utilization of insulin"
To explain is to make plain or clear--render understandable or intelligible--and to assign meaning to. So include the description--diabetes is a disorder, blah blah blah, but you need to make the description understandable and clear and to talk a little about how diabetes affects people's lives (assigning meaning to the essay).

Answer 9

When you explain you are going into more detail than describing. You are revealing relevant facts or ideas.

If you were to explain the steps to the scientific method you are going to use more details versus if you were describing them. ? >.>

Answer 10

@Frostbite

Answer 11

This question is interesting...:3

Answer 12

@Ryaan quick question, In your own words, explain the effects of changes in Earth's magnetic field over time. <--- is this question asking me to explain what causes the changes in Earth's magnetic field over time or is it asking me to explain what the changes in Earth's magnetic field over time caused? :)

Answer 13

@Ryaan it sure is :3 XD

Answer 14

Hmmm...its asking about effects of changes in earth's magnetic field over time..and it wants explanation also.........{.Effects +explanation.}..

Answer 15

@Ryaan so its asking me to explain what the changes in Earth's magnetic field over time caused? :P

Answer 16

Yes yes..exactly....:p when you'll explain about changes it will include effects also..means what changed it what was the reasons.,what effects ...

Answer 17

@Ryaan ahh okay xD thanks for the help :) lol just wonder what the answer to the question before was XD

Answer 18

The 2. law "describe" the relation...

Answer 19

If I had to say so.

Answer 20

@Frostbite thank u :D

Answer 21

Thumbs up for frostbit..:D

Answer 22

But then again... the 2. law of motion can be written in so many ways... equations, words you name it. The law it self does not explain WHY there are the connecting, but it do show / describe it is there - the reason for my conclusion.

Answer 23

@Frostbite lol its a really confusing question XD

Answer 24

It is truly vague and in my opinion just quibbling,

Answer 25

I mean look at it:
\[F=ma\]
The resulting force is proportional to the acceleration with the mass as proportional constant.
A resulting force is equal to the change in an object pulse.

Just described the 2. law in 3 ways <.<

Answer 26

diffrent and yes 100% the same...

Answer 27

@Frostbite so u think its describe? :3

Answer 28

>.>

Answer 29

I would say describe, not sure, but that is what I would say.

Answer 30

Describe doesn't mean description?

Answer 31

If we "explained" the law... then we would show how we got to it, in other words derive it.

Answer 32

That could be using an example and such... no I'm 96% sure it is describe ;D

Answer 33

@Frostbite XD I will just go with what u said :D thanks for the help ^-^

Answer 34

Awesome @Frostbite

Answer 35

Lets see... if wrong I go hide in my box of shame ;)

Answer 36

I definitely think describe. I settled on that 100% as the best response.

It states the meanings of force, mass, and acceleration.
No, there is so much more to each property than the law describes. It doesn't attempt to describe them.

It analyses the meanings of force, mass, and acceleration.
No, there is no analysis. It is a law, so it is stating something for certain.

It describes the relationship between force, mass, and acceleration.
Yes, it defines the relations between them. How their values always interact. And it can only describe this, in words and in math. It is a law, it states, not explains. Theory is not a part of a law, I think.

It explains the relationship between force, mass, and acceleration.
No, the law does not explain. It does not attempt to say why the relationship is so. Laws, I'm pretty sure, do not explain things in that sense. But I see how one connotation of "explain" would cause this question to be difficult. But there are no issues with option #3, so that is best.



As to "In your own words, explain the effects of changes in Earth's magnetic field over time.", I agree with Ryaan. And for the same reason! It says "explain the effects of...", meaning there are effects (things caused by changes in Earth's magnetic field over time) and you need to talk about what and why they are so.
All I can think of off hand is the compass north and south moves, and scientists think some birds use it to migrate :P But the birds might adapt, so we'd be stuck wit bad compasses without modification! It's not my area of expertise. Good luck, though!