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Preview questions
1. What is the universal law of gravitation?
Every particle attracts every other particle · Only large objects attract each other · Gravity is only present on Earth · Gravity decreases with distance
2. Which of the following factors does NOT affect the gravitational force between two objects?
Mass of the objects · Distance between the objects · Shape of the objects · Gravitational constant
3. The gravitational force between two objects is directly proportional to which of the following?
The product of their masses · The sum of their masses · The distance between them · The square of their distances
4. What is the value of the gravitational constant (G)?
6.67 x 10^-11 N m²/kg² · 9.81 m/s² · 1.6 x 10^-19 N · 3.14
5. If the distance between two objects is doubled, how does the gravitational force change?
It doubles · It quadruples · It halves · It becomes one-fourth
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