Iona Prep Physics Resources

The songs below are based upon Christmas carol melodies.

## (Melody: O Christmas Tree)

O Gravity, O Gravity,
All Newton's theories crowning,
Where e'er we be, land, air, or sea,
F equals G, m-one, m-two,
All over R squared, yes, it's true.
O Gravity, O Gravity,
We cannot flee, you guarantee!

## (Melody: Jingle Bells)

When something hits the earth,
You'll notice in a trice,
It makes a great big bang,
Now isn't that so nice?
So what makes things fall down?
What makes them go ker-plop?
The answer's in this song, my friend,
We'll sing it 'till we drop.
Oh!
Gravity, Gravity,
Keeps us on the ground.
It was explained by Newton,
(The scientist renowned)!
Gravity, Gravity,
Mass times nine-point-eight.
Is a vector pointing down,
That's sometimes known as "weight."

Walk around the earth.
If gravity weren't there,
You'd float away in space.
Now some call it a push--
Well, call it any name,
But gravity will always PULL--
Attraction is its game!
Oh!
Gravity, Gravity,
Keeps us on the ground.
It was explained by Newton,
(The scientist renowned)!
Gravity, Gravity,
Mass times nine-point-eight.
Is a vector pointing down,
That's sometimes known as "weight."

## (Melody: God Rest Ye merry, Gentlemen)

Light travels in straight lines,
that is unless somehow it's turned.
It can reflect (or bounce right back),
But that's quite eas'ly learned.
Refraction is the property
with which we're now concerned:

Chorus:
Oh - Sin theta-one times index one
is equal to
Sin theta-two times index two!

Refraction is the bending
which is caused by changing speed.
When entering at an angle,
light will bend, and then proceed--
to travel in a new straight line,

Oh - Sin theta-one times index one
is equal to
Sin theta-two times index two!

Now since the bending's caused by changing speed, we have a clue
To calculate light's speed in any medium, (it's true!)
n-one v-one is equal to n-two times v-two.

Oh - Sin theta-one times index one
is equal to
Sin theta-two times index two!

When slowing down the light bends 'toward the normal' as they say.
When speeding-up it will bend from the normal away --
Until the angle critical is reached to our dismay!

Oh - Sin theta-one times index one
is equal to
Sin theta-two times index two!

## (Melody: Silent Night)

Photons of light,
Sparkling bright,
Energy
in the night.
Energy like a stash in the bank.
Frequency times the constant of Planck.
Energy we can use...
use it as we choose!

## (Melody: Deck the Halls)

Deck the Physics lab with vectors
(Fa la la la la la la la la la)
And with laser light reflectors
(Fa la la la la la la la la la)
Let us have a celebration
(Fa la la la la la la la la)
Full of song and jubilation
(Fa la la la la la la la la )

Deck the lab and be of good cheer.
(Fa la la la la la la la la la)
No more Physics classes this year!
(Fa la la la la la la la la)
But one question can be foreseen...
(Fa la la la la la la la la)
Who the heck knows what these words mean:
" Fa la la la la la la la la"?

## (Melody: O Little Town of Bethlehem)

O Little Physics Reference Sheet,
so much information's here.
With our Mechanics, Waves, and Heat,
You've helped us a lot this year.
The speeds of light and sound
and refractive indicies,
They all are here,
We shall not fear,
While holding facts like these.

And lots of useful formulae,
are tabulated here.
They help refresh our memories,
when recall is less-than-clear.
For Distance-Time relations,
and laws of E and M,
will sometimes blur,
so we refer
To you to look for them.

Specific Heats, and Boiling points,
and trigonometric sines,
Though highly prized, aren't memorized.
Examinations final are not too far away.
We know that you will help us through
The physics Judgment-day.

## (Melody: Joy To The World)

Joy to the World, the last dumb song
Is over -- now we're through!
Our singing we will not prolong--
(That's what you hoped for all along).
Christmas greetings we renew
Merry Christmas now to you,
Christmas greetings we now renew,