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When only air resistance acts on an object mechanical energy is conserved?
No, when only air resistance acts on an object, mechanical energy is not conserved. Air resistance dissipates the mechanical energy of the object by converting it into other forms of energy, such as heat and sound, causing the object to slow down and lose kinetic energy over time.
How is mechanical energy stored?
Mechanical energy is stored in objects through their positions or motion. Potential energy is stored in an object's position or shape, while kinetic energy is stored in an object's motion. When an external force acts on the object, this stored mechanical energy can be released and converted into other forms of energy.
Are there any situations in which a frictional force can increase the mechanical energy of a system?
No, friction always acts in the direction opposite to the motion of an object, which dissipates mechanical energy in the form of heat. Therefore, friction cannot increase the mechanical energy of a system.
What is the relationship between mechanical energy and work?
Work is the quantity of energy being transfered (i.e. potential to kinetic). It is due to work that energy is transfered between potential and kinetic and vice versa. This is an attribute of the first law of thermodynamics. Energy is also the ability to do work
What is mechanical work done?
Mechanical work is the transfer of energy that occurs when a force acts on an object and causes it to move. It is calculated by multiplying the force applied to the object by the distance over which the force is applied in the direction of the force. Work is measured in joules (J).
When only air resistance acts on an object mechanical energy is conserved?
No, when only air resistance acts on an object, mechanical energy is not conserved. Air resistance dissipates the mechanical energy of the object by converting it into other forms of energy, such as heat and sound, causing the object to slow down and lose kinetic energy over time.
When only acts on an object mechanical energy is conservered?
gravity
How is mechanical energy stored?
Mechanical energy is stored in objects through their positions or motion. Potential energy is stored in an object's position or shape, while kinetic energy is stored in an object's motion. When an external force acts on the object, this stored mechanical energy can be released and converted into other forms of energy.
Are there any situations in which a frictional force can increase the mechanical energy of a system?
No, friction always acts in the direction opposite to the motion of an object, which dissipates mechanical energy in the form of heat. Therefore, friction cannot increase the mechanical energy of a system.
In which situations is mechanical energy conserved?
A ball is thrown up into the air withough encountering air resistance.
Can an object be in mechanical equilibrium if only a single for acts on it?
No.
What is the relationship between mechanical energy and work?
Work is the quantity of energy being transfered (i.e. potential to kinetic). It is due to work that energy is transfered between potential and kinetic and vice versa. This is an attribute of the first law of thermodynamics. Energy is also the ability to do work
Which physical quantity is conserved of an earth satellite?
Velocity of satellite and hence its linear momentum changes continuously due to the change in the direction of motion in a circular orbit. However, angular momentum is conserved as no external torque acts on the satellite.
Can a object be in mechanical equilibrium when only a single force acts on it?
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What is mechanical work done?
Mechanical work is the transfer of energy that occurs when a force acts on an object and causes it to move. It is calculated by multiplying the force applied to the object by the distance over which the force is applied in the direction of the force. Work is measured in joules (J).
Work is transfer of?
Work is the transfer of energy between a system and its surroundings, resulting in the displacement of an object from one location to another. It is a scalar quantity that measures the amount of energy transferred when a force acts on an object over a distance.
What force causes something to bounce?
When an object collides with a surface, the surface exerts a force on the object in the opposite direction, causing it to bounce. This force is known as the normal force, which acts perpendicular to the surface. Additionally, the elasticity of both the object and the surface determines how much energy is conserved during the collision, affecting the height of the bounce.
