Understanding Gravity
Explore the fundamental concepts of gravity, including Newton's Law of Universal Gravitation, gravitational force, and its effects on objects.
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Understanding Gravity
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Read each question carefully and answer to the best of your ability. Show all your work for calculation problems.
1. Which of the following best describes gravity?
A force that pushes objects apart.
A force that attracts objects with mass.
A force that only affects objects in space.
A force that repels magnetic materials.
2. According to Newton's Law of Universal Gravitation, the gravitational force between two objects is directly proportional to:
The distance between them.
The square of the distance between them.
The product of their masses.
The sum of their masses.
3. The universal gravitational constant is represented by the letter .
4. Weight is a measure of the acting on an object.
5. An object in free fall experiences only the force of .
6. The acceleration due to gravity is the same for all objects, regardless of their mass, in a vacuum.
True
False
7. The force of gravity between two objects decreases as the distance between them increases.
True
False
8. State Newton's Law of Universal Gravitation in words.
9. Explain the difference between mass and weight.
10. Two objects have masses of 10 kg and 20 kg, respectively. They are separated by a distance of 5 meters. Calculate the gravitational force between them. (G = 6.67 × 10⁻¹¹ N·m²/kg²)