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Questions and Answers
Which of the following statements about gravitational force is true?
Which of the following statements about gravitational force is true?
What is the equation for gravitational force between two objects according to Newton's law of gravitation?
What is the equation for gravitational force between two objects according to Newton's law of gravitation?
F = G * (m1 * m2) / r^2
Increase in mass of either object results in an increase in gravitational __________.
Increase in mass of either object results in an increase in gravitational __________.
force
Gravitational force depends on the color of the objects involved.
Gravitational force depends on the color of the objects involved.
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Study Notes
Gravitational Force
Definition: Gravitational force is a universal force that attracts two objects with mass towards each other.
Characteristics:
- Always attractive, never repulsive
- Depends on the mass of the objects and the distance between them
- Acts along the line joining the centers of the two objects
- Is a vector force, having both magnitude and direction
Gravitational Force Equation:
- F = G * (m1 * m2) / r^2
- F: gravitational force between the two objects
- G: gravitational constant (6.67408e-11 N*m^2/kg^2)
- m1 and m2: masses of the two objects
- r: distance between the centers of the two objects
Factors Affecting Gravitational Force:
- Mass: Increase in mass of either object increases the gravitational force
- Distance: Increase in distance between objects decreases the gravitational force
- Gravitational constant: A fundamental constant of nature, constant at all points in space and time
Types of Gravitational Forces:
- Gravitational force between two objects: Attracts two objects with mass towards each other
- Gravitational force of the Earth: Attracts objects towards the center of the Earth, responsible for weight and keeping objects on the surface
- Gravitational force in the universe: Responsible for the motion of planets, stars, and galaxies
Gravitational Force
- Gravitational force is a universal force that attracts two objects with mass towards each other.
- It is always attractive, never repulsive.
Characteristics of Gravitational Force
- Depends on the mass of the objects and the distance between them.
- Acts along the line joining the centers of the two objects.
- Is a vector force, having both magnitude and direction.
Gravitational Force Equation
- F = G × (m1 × m2) / r^2, where: • F is the gravitational force between the two objects. • G is the gravitational constant (6.67408e-11 N·m^2/kg^2). • m1 and m2 are the masses of the two objects. • r is the distance between the centers of the two objects.
Factors Affecting Gravitational Force
Mass
- Increase in mass of either object increases the gravitational force.
Distance
- Increase in distance between objects decreases the gravitational force.
Gravitational Constant
- A fundamental constant of nature, constant at all points in space and time.
Types of Gravitational Forces
Gravitational Force Between Two Objects
- Attracts two objects with mass towards each other.
Gravitational Force of the Earth
- Attracts objects towards the center of the Earth, responsible for weight and keeping objects on the surface.
Gravitational Force in the Universe
- Responsible for the motion of planets, stars, and galaxies.
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Description
Learn about the definition, characteristics, and equation of gravitational force, a fundamental force in physics that attracts objects with mass towards each other.