Gravitational Force Definition and Explanation
The question describes a fundamental concept in physics: the force of attraction between objects based on their mass and separation distance. This description perfectly matches Newton's Law of Universal Gravitation.
Newton's Law of Universal Gravitation
This law states that any two bodies in the universe attract each other with a force. This gravitational force has two main characteristics as described in the question:
- It is directly proportional to the product of the masses of the two bodies. This means if you increase the mass of either object, the force gets stronger.
- It is inversely proportional to the square of the distance of separation between their centers. This means if you double the distance, the force becomes four times weaker (\(1/2^2 = 1/4\)).
Mathematical Representation
We can express this law mathematically using the following formula:
\( F = G \frac{m_1 m_2}{r^2} \)
Where:
- \(F\) represents the magnitude of the gravitational force between the two bodies.
- \(G\) is the universal gravitational constant (approximately \(6.674 \times 10^{-11} \, \text{N}\cdot\text{m}^2/\text{kg}^2\)).
- \(m_1\) and \(m_2\) are the masses of the two bodies.
- \(r\) is the distance between the centers of the two bodies.
Analysis of Options
- Gravitational force: This option accurately reflects the definition provided in the question. The force depends on mass and distance squared.
- Electromagnetic force: This force acts between electrically charged particles. It can be attractive or repulsive and depends on the magnitude of the charges and the distance. It's not primarily dependent on mass in the way described.
- Electrostatic force: This is a specific type of electromagnetic force acting between stationary electric charges. Like the electromagnetic force, it depends on charge, not mass.
- Electromotive force (EMF): This is not a force in the classical sense but rather the potential difference (voltage) produced by an energy source, like a battery. It drives electric current.
Therefore, the force described in the question is the gravitational force.
Similar Questions
- Power of a lens of focal length 'f' is directly proportional to __________.
- The resistance of a conductor of length 'L' and cross-section area 'A' is directly proportional to __________.
- Uniform circular motion is described by which of the following examples?
- What can be formed by a coil of many circular turns of insulated copper wire wrapped closely in the shape of a cylinder?
Selcted the INCORRECT statement.
- The apparent random wavering or flickering of objects seen through a turbulent stream of hot air rising above a fire or a radiator is due to:
What happens when we increase the temperature of solids?
Which gas is passed through calcium hydroxide to form calcium carbonate and water?
A cubic wooden block of side 2 m is lying on a tabletop. If the mass of the wooden block is 10 kg‚ then the pressure exerted by the wooden block on the tabletop is: (consider g = 10 m/s2)
When a thick glass slab is placed over printed matter, they appear to be ________ and this is due to ________ of light.
Important Questions from Physics
What is the colour of the light emitted by the Sun?
Lightning occur in the sky when two clouds:
With reference to street-lighting, how do sodium lamps differ from LED lamps?
1. Sodium lamps produce light in 360 degrees but it is not so in the case of LED lamps.
2. As street lights, sodium lamps have a longer life span than LED lamps.
3. The spectrum of visible light from sodium lamps is almost monochromatic while LED lamps offer significant colour advantages in street lighting.
Select the correct answer using the code given below.
In a pressure cooker, the temperature at which the food is cooked depends mainly upon which of the following?
1. Area of the hole in the lid
2. Temperature of the flame
3. Weight of the lid
Select the correct answer using the code given below.
The famous phenomenon 'Raman Effect' discovered by Nobel laureate CV Raman is related to which field of physics?
