In which situation is work done?
Work is done whenever a force or a component of a force results in a displacement.
No component of the force is acting in the direction of motion when the book is moved horizontally with a constant velocity.
The force and the displacement are independent.
No work is done by the hand on the book..
What happens to energy when work is done?
When work is done on a system or object, energy is added to it. When work is done by a system or object, it gives some of its energy to something else. … By applying a force on the ball over this distance, the hand is doing work on the ball, and the ball gains kinetic energy. This is what gives it speed.
When work is done on a body do you lose energy?
Work done by a body against friction always results in a loss of its kinetic/potential energy.
When can one say that work is done on the body?
Work is done whenever the given conditions are satisfied: A force acts on the body. There is a displacement of the body caused by the applied force along the direction of the applied force.
How do energy work in our body?
The human body carries out its main functions by consuming food and turning it into usable energy. Immediate energy is supplied to the body in the form of adenosine triphosphate (ATP). Since ATP is the primary source of energy for every body function, other stored energy is used to replenish ATP.
What is the difference between energy work and power?
Power is defined as the amount of energy transferred in unit time. The SI unit of power is the watt. One watt is equal to one joule per second. Power is a scalar quantity….Difference between Momentum and Inertia.WorkPowerWork is a scalar quantity.Power is a scalar quantity.3 more rows