Yet another quick one I bet one of you will be able to explain in twenty seconds.
Going over Electric on my own and I've come across the basics of Potential Difference, when looking at it between points (not in a field) it is defined as electric potentials being different at two points...
Hi Tiny Tim! :)
So how can the gravitational potential be equal to the work done if the formulae are different?
Are the formulae for work done and gpe not the same?
Was the last part of what I said correct other than the GPE part? Is it numerically equal because a unit mass is...
Just a quick check with you guys before I move on.
Gravitational potential is defined at a point as being numerically equal to the work done in bringing a unit mass to that point.
However the formulae for GPE and for work done are the same right?
But is this connection between...
Tiny Tim,
Just looking at what you said about the formula for field strength coming with a minus sign because it is a vector.
So the minus sign is put in with the original formula just to show it is a vector quantity and seeing as gravity is normally taken to be in the negative (down)...
Another stupid thing I've come across and thought; what?
Mainly down to not having many example questions to look at, I'm sure that'd help a bunch.
I am self studying this topic so apologies for what may be silly questions...
Looking at the formulae for Gravity, Gravitational Field...
Sorry Studiot, what I was saying is this the only "instance" in which you would see units written as s-1 , when looking at Angular Frequency?
Not time units, apologies for the mix up.
Thanks for the tip.
Ok BBB the first half of what you said made sense, after that it was pretty much white noise but I'm sure that's only because I am only at the beginning of this journey!
So even though technically they both have units of s^-1, I have to just separate them both, pretty much mentally, by saying...
Ok so because the Simple Harmonic Motion when described graphically is sinusoidal, you can use the same equations as you do for circular motion?
So the error in my book is it saying ω is in the units /s? It should be in rad/s, which in this case is angular frequency right? And even though the...
Ok I think that's cleared it up a lot more. Thanks.
So just to check, if the system is exerting SHM but the movement is linear (rather than angular like the circle or pendulum), is the ω still rad/s?
As isn't the frequency, denoted f, in the units /s?
Is the ω just another letter in place...
I'm clearly not getting this the way I should be.
How were you guys taught it?
Should I try and look at the "dimensions and "units" you mention?
Should I just accept that when looking at SHM the ω is given in the units /s?
...and when looking at circular motion the ω is given in the...
(Pre-warning: I'm not even sure these questions are making logical sense anymore.)
But if in circular motion ω=2∏/T (when looking at the period of motion) the omega is defined as angular velocity which is the change of radians over time ... ω=Δθ/t...you see the circle, you see the number of...
I kind of see what your saying, I hadn't thought of it in that way.
But with work done and turning moment, there is no difference in size like there is between a radian and a cycle?
All force is measured in Newtons regardless of where it is...
If you have a question asking for the omega...
Ok feeling closer to the truth now.
But I thought there were 2pi radians in a revolution, therefore the rad/s will be higher than the Hz?
Does this not mean that the two can't be equivalent as one has to be 2pi x more than the other?
Most obvious example for me is the equation for the...
Ok so are they essentially the same thing it just depends on the system in which you're observing?
Radian being the ratio of angle turned through in relation to the radius?
So you could effectively write that the angular velocity of a car is 6 s^-1 but the radians is put there to give more...
Simple Harmonic Motion!?
Hi All,
New to the forum, sorry if this is a thread that has been discussed before, however I've had a quick look and have been killing myself for days over this.
Approached my college tutor today and he couldn't explain it!?
I'm almost sure that it is something...