15 Questions
The gravitational potential energy of an object increases as its height decreases.
False
Elevation is the height of an object below a specific reference point, such as sea level.
False
The relationship between elevation and gravitational potential energy is inversely proportional.
False
The mass of an object has no effect on its gravitational potential energy.
False
The higher an object is, the less gravitational potential energy it has.
False
Gravitational potential energy is directly proportional to the height of an object.
True
Gravitational potential energy is independent of the elevation of an object.
False
The gravitational potential energy of an object decreases as its elevation decreases.
True
The work done in lifting an object is given by the distance multiplied by the force.
True
The force of gravity is acting upward when an object is lifted.
False
The gravitational potential energy of an object is given by U = m × g ÷ h.
False
The acceleration due to gravity is included in the formula for gravitational potential energy.
True
The mass of an object has no effect on the formula for gravitational potential energy.
False
The work done in lifting an object is equal to the change in its kinetic energy.
False
The formula for gravitational potential energy is derived by substituting values into the work done equation.
True
Study Notes
Gravitational Potential Energy and Height
- Gravitational potential energy is the energy an object has due to its height or position in a gravitational field.
- The higher an object is, the more gravitational potential energy it has.
- As an object gains height, its gravitational potential energy increases.
Factors Affecting Gravitational Potential Energy
- Height (h): The primary factor affecting gravitational potential energy is the height of the object above the ground or a reference point.
- Mass (m): The mass of the object also affects its gravitational potential energy, but height is the more significant factor.
Elevation and Gravitational Potential Energy
- Elevation: Elevation is the height of an object above a specific reference point, such as sea level.
- An object's gravitational potential energy increases as its elevation increases.
- The relationship between elevation and gravitational potential energy is directly proportional: as elevation increases, gravitational potential energy also increases.
Key Formula
- The formula for gravitational potential energy is: U = mgh
- U = gravitational potential energy
- m = mass of the object
- g = acceleration due to gravity (approximately 9.8 m/s² on Earth)
- h = height or elevation of the object
Learn about the factors affecting gravitational potential energy, its relationship with elevation, and the formula to calculate it. Understand how height, mass, and gravity affect an object's potential energy.
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