Torque

What is torque and how is it used in simple machines?

Kepler's Laws

Why did Kepler's Laws of Planetary Motion change the way that we look at Pluto?

Inside a black hole

What did you learn about black holes and what is inside of them?

Gravitational field strength

Why is the Gravitational field strength equal to the free-fall acceleration?

Newton

According to Newton's Law of Universal Graviation what is G?

Looped

Who has the coolest loop and why?

What about those loops?

Is your loop that you made in class going to work or is it going to fail? If you have already made your loop and tested it, tell me if it work or not and why.

Black holes spin near speed of light

By Jeremy Hsu, SPACE.com
Supermassive black holes spin at speeds approaching the speed of light, new research suggests.
Nine huge galaxies were found to contain furiously whirling black holes that pump out energetic jets of gas into the surrounding environment, according to a study using data from NASA's Chandra X-ray Observatory.



How do we really know that a black holes spins at the speed of light?

Ptolemy

What did Ptolemy do that was so great when it came to planetary motion?

Black Hole

What is really inside a black hole? In fact, what is a black hole?

Who is this?

Who the heck is Henry Cavendish and what did you do to get his name in a text book?

Newton and Gravity???

Newton not only stated his laws of motion but he also had a little something to do with stating a law about gravitation force. What is that law and what does it say?

Inertia

What is inertia and why is it related to circular motion?

Job's in momentum

What job did you find that realated to chapter 6?

Seat Belts

Every car that is made now contains a seat beat. Explain the purpose of the seat beat and why some are better then others.

Collision

Give an examples of a perfectly inelastic collision and describe how it differs from a elastic collision.

What is going on here?

Watch the first video and tell me what you think is happening here.