Force and Pressure | Short/Long Answer Questions
Solution: Factors on which moment of force depends are: (i) The magnitude of the force applied . (ii) The distance of line of action of the force from the axis of rotation.
What factors affect the gravity of a planet?
Planets have measurable properties, such as size, mass, density , and composition. A planet’s size and mass determines its gravitational pull. A planet’s mass and size determines how strong its gravitational pull is.
Which factors affect the force of gravity?
When dealing with the force of gravity between two objects, there are only two things that are important – mass, and distance . The force of gravity depends directly upon the masses of the two objects, and inversely on the square of the distance between them.
What are the two factors that affect gravity?
When dealing with the force of gravity between two objects, there are only two things that are important – mass, and distance . The force of gravity depends directly upon the masses of the two objects, and inversely on the square of the distance between them.
What are two factors which affect moment?
- M = the moment of the force in newton-metres, Nm.
- F = the force in newtons, N.
- d = the perpendicular distance from the line of action of the force to the pivot in metres, m.
Does size affect gravity?
The size of the gravitational force is proportional to the masses of the objects and weakens as the distance between them increases. Both objects exert an equal attractive force on each other: a falling object is attracting the Earth with the same size force as the Earth is attracting it.
How can we overcome the effect of gravity?
The measurement of the force it takes to work against gravity is called weight. You can measure weight on a scale. If you try to pick up heavy objects, you might need to be as strong as a super hero to lift them. Lifting overcomes the pull of gravity.
What is the force of gravity on each planet?
| Space object g, gravitational field strength (N/kg) | Venus 8.8 | Earth 9.8 | Moon (satellite) 1.7 | Mars 3.7 |
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What three factors affect the pull of gravity?
Two major factors, mass and distance , affect the strength of gravitational force on an object.
What is the force of gravity between two objects?
Gravitational force -an attractive force that exists between all objects with mass; an object with mass attracts another object with mass; the magnitude of the force is directly proportional to the masses of the two objects and inversely proportional to the square of the distance between the two objects.
What is effect of gravity?
Earth’s gravity affects the motion of all the objects we see in daily life by accelerating them toward the center of the earth . Therefore, to efficiently process object motion the human visual system needs to consider gravity.
Does force depend on acceleration?
The acceleration of an object depends directly upon the net force acting upon the object , and inversely upon the mass of the object. As the force acting upon an object is increased, the acceleration of the object is increased. As the mass of an object is increased, the acceleration of the object is decreased.
What does force depend on?
Although the forces between two objects are equal-and-opposite, the effect of the forces may or may not be similar – it depends on the relative masses of the objects .
What are the factors affecting work done?
The Angle between the Force Vector and the Displacement Vector. The work done by a force on an object can be positive, negative, or zero , depending upon the direction of displacement of the object with respect to the force.
Does a bigger person have more gravity?
Anything that has mass also has gravity. Objects with more mass have more gravity . Gravity also gets weaker with distance. So, the closer objects are to each other, the stronger their gravitational pull is.
Is gravity stronger the higher you go?
Essentially, gravity holds our world together. ... In addition, gravity is weaker at the equator because of centrifugal forces produced by the planet’s rotation. Gravity is also a bit weaker at higher altitudes , being farther from Earth’s center, such as the summit of Mount Everest.
