Podcast
Questions and Answers
What is the condition for which the work done by a constant force is valid?
What is the condition for which the work done by a constant force is valid?
- When the force and displacement are in the same direction (correct)
- When the force and displacement are in the opposite direction
- When the force is perpendicular to the displacement
- When the force is varying
Which type of energy is associated with an object in motion?
Which type of energy is associated with an object in motion?
- Kinetic energy (correct)
- Potential energy
- Gravitational energy
- Thermal energy
What is the direction of the force vector component when it does negative work on an object?
What is the direction of the force vector component when it does negative work on an object?
- Opposite direction to the displacement (correct)
- Same direction as the displacement
- At an angle of 45 degrees to the displacement
- Perpendicular to the displacement
What is the principle that states that the total energy of an isolated system remains constant?
What is the principle that states that the total energy of an isolated system remains constant?
What is the unit of work done in a system?
What is the unit of work done in a system?
Which equation relates the work done by a force to the energy transferred to an object?
Which equation relates the work done by a force to the energy transferred to an object?
What is the fundamental principle that states that the total amount of energy remains constant, regardless of transformations and transfers?
What is the fundamental principle that states that the total amount of energy remains constant, regardless of transformations and transfers?
Which type of energy is associated with the motion of an object with mass and velocity?
Which type of energy is associated with the motion of an object with mass and velocity?
What is the relationship between the change in potential energy and the work done by a particular force?
What is the relationship between the change in potential energy and the work done by a particular force?
What is the principle that states that the net work done on an object is equal to the change in the object's kinetic energy?
What is the principle that states that the net work done on an object is equal to the change in the object's kinetic energy?
What type of energy is stored in elastic materials or objects, such as a rubber band or a spring?
What type of energy is stored in elastic materials or objects, such as a rubber band or a spring?
What happens to the total mechanical energy of a system when only conservative forces do work?
What happens to the total mechanical energy of a system when only conservative forces do work?
What is the direction of the force component that does negative work on an object?
What is the direction of the force component that does negative work on an object?
If a force of 50 N is applied to an object, and it moves a distance of 2 m, what is the work done on the object?
If a force of 50 N is applied to an object, and it moves a distance of 2 m, what is the work done on the object?
What is the net work done on a 20 kg object if a constant force of 80 N is applied to it, and it moves a distance of 1.2 m, with an opposing friction force of 10 N?
What is the net work done on a 20 kg object if a constant force of 80 N is applied to it, and it moves a distance of 1.2 m, with an opposing friction force of 10 N?
What is the unit of energy transferred when a force is applied to an object?
What is the unit of energy transferred when a force is applied to an object?
What determines the amount of work done on an object when a force is applied to it?
What determines the amount of work done on an object when a force is applied to it?
What is the characteristic of a force that does zero work on an object?
What is the characteristic of a force that does zero work on an object?
