Category Archives: Grade 10

Whats inside a black hole?

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Black holes truly are one of a kind. Before I answer What’s inside a black hole, I first had to figure out what exactly is a black hole. 

Basically, a black hole is a region of spacetime where gravity is so strong that nothing can escape. Padi Boyd says the name “black” comes from the fact that not even light can escape. The gravitational and attractive forces are so strong they don’t suck things in; rather, they pull things. Even though there are no light sources, black holes are not empty. They have a mass concentrated into one place. This point is known as a singularity. Ragina Caputo says “We can’t make anything like a black hole on earth to study it. And so, if we really want to understand how gravity interacts with all the other forces in the universe, it’s really a playground for understanding how gravity works, how fundamental particles work, how stars collapse in on themselves. “As a theoretical matter, if you survived entering a black hole, part of you would cross over into the event horizon and most likely the rest of you would follow shortly afterward. In an instant, you’ll find yourself inside a black hole, never to be seen again. Almost. That’s where it gets crazy. You might experience this if a friend were watching you, but while it happens slowly, you may appear frozen in time as if you have never passed through the event horizon.  This is because the gravitational forces stretch out time.  Really, it bends the reality of our universe. In reverse, the opposite occurs from your perspective. Therefore, if you watched someone, they would seem to be moving at warp speed.  Once inside that’s your universe.  Again, scientists don’t know what you’d see or feel they can only theorize. But at some point, you would become one with the singularity. Basically, they think you’d be compressed into a tiny speck.

Artist's illustration of a black hole.

Citations

Sutter, Paul. “What Happens at the Center of a Black Hole?” Space.com, Space, 9 Feb. 2022, https://www.space.com/what-happens-black-hole-center.

Daines, Gary. “Inside a Black Hole.” NASA, NASA, 20 Nov. 2020, https://www.nasa.gov/mediacast/inside-a-black-hole.

“Black Hole.” Wikipedia, Wikimedia Foundation, 16 June 2022, https://en.wikipedia.org/wiki/Black_hole.

 

 

Rube Music Player

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Rube Music Player diagram

Step 1. The first step is to drop the ball down the cardboard tube 

Step 2. The second step is the ball hits the first train 

Step 3. The third step is the first train hits the second train 

Step 4. The fourth step is the second train hits a domino making all the dominos fall 

Step 5. The fifth step is the dominos hit the ball over 

Step 6. The sixth and last step is the ball falls down the cardboard tube from the dominos and hits the play button on keyboard  

During the first step, the ball’s gravitational potential energy transforms into rotational kinetic energy as it rolls. A train’s potential energy is also present in the second and third steps until the ball touches train number 1. Train number 1 collides with train number 2, transforming both into kinetic energy. Step four shows the dominos as potential energy until the train hits them, when they become kinetic. Prior to it falling into a tube, the ball has potential energy as well as kinetic energy when it is knocked over by dominoes. In the sixth step, the laptop has electrical and thermal energy, and when the ball hits, it also has sound energy.

The video – http://youtube.com/shorts/As6pYlMfVgY?feature=share

Keep in mind I had no help with the project so the filming is not the greatest.

Self Assessment –