What would be the work done if the displacement of an object is zero?
If the displacement of the object is zero, then one can calculate the work done by each individual force, the work done by each force is zero. If the object doesn’t move during its trip, then d→x/dt=0, and the integral vanishes, so we obtain W(tb,ta)=0.
Does the object which does the work lost energy?
When work is done by an object it loses energy and when work is done on an object it gains energy. NO WORK IS DONE if the force you exert does not make the object move in the same direction as the force you exerted.
When work is done on a body then?
ANSWER: Option c : The total work done is equal to change or increase in Kinetic energy. If kinetic energy increases, potential energy decreases…
When work is done on a body it?
Work done on a body is equal to the increase in the energy of the body, for work transfers energy to the body. If, however, the applied force is opposite to the motion of the object, the work is considered to be negative, implying that energy is taken from the object.
Is Power same as energy?
Energy is what makes change happen and can be transferred form one object to another. Power is the rate at which energy is transferred. It is not energy but is often confused with energy. The watt is the most commonly used unit of measure for power.
What relationship can you give between energy and power?
Energy and power are closely related but are not the same physical quantity. Energy is the ability to cause change; power is the rate energy is moved, or used.
How do you calculate work and power?
Power equals work (J) divided by time (s). The SI unit for power is the watt (W), which equals 1 joule of work per second (J/s). Power may be measured in a unit called the horsepower.
How do you calculate Q heat?
We wish to determine the value of Q – the quantity of heat. To do so, we would use the equation Q = m•C•ΔT. The m and the C are known; the ΔT can be determined from the initial and final temperature.
What does Q MC T stand for?
heat energy