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Gravity and Black Holes
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Gravity and Black Holes
🌍 Part 1: Understanding Gravity
1. What is gravity?
A force that only works on Earth
A universal force acting between all masses
A force that pushes objects away from each other
A force that only affects heavy objects
2. Which of the following are affected by gravity? (Select all that apply)
Planets orbiting the Sun
A ball falling to the ground
Light near a black hole
The Moon orbiting Earth
3. Complete the sentence: The strength of gravity depends on the _________ of objects and the _________ between them.
4. Why do we feel gravity more strongly on Earth than on the Moon?
Earth is closer to the Sun
Earth has more mass than the Moon
The Moon has no atmosphere
Earth spins faster than the Moon
🕳️ Part 2: Black Holes and Extreme Gravity
5. What is the event horizon of a black hole?
6. Why can't light escape from a black hole?
Black holes absorb all colours
The gravitational pull is so strong that nothing can escape
Black holes are too cold
There is no air in space
7. In our practical activity with the lycra sheet, what did the heavy ball represent?
The heavy ball represented a _________________ and the curved sheet showed how gravity affects _________________ around it.
8. Describe what happened when you rolled smaller balls near the heavy ball on the lycra sheet.
🚀 Part 3: Applying Your Knowledge
9. Explain why satellites can orbit Earth without falling to the ground.
10. Compare gravity on Earth with gravity near a black hole. Use scientific vocabulary in your answer.
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