Questions and Answers
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?
F = G * (m1 * m2) / r^2
Increase in mass of either object results in an increase in gravitational __________.
force
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.