Make an acrostic using the word power. Your sentence should start with the letters of the word. Your sentences should also be related to the physics concept of power. P – Power is the rate at which work is done. O – Objects with more mass require more power to move. W – Work done divided by time gives the power. E – Energy transfer per unit time is power. R – Resistance affects the power in an electrical circuit.
The Correct Answer and Explanation is:
Here’s the acrostic for the word “POWER” related to the concept of power in physics:
P – Power is the rate at which work is done.
O – Objects with more mass require more power to move.
W – Work done divided by time gives the power.
E – Energy transfer per unit time is power.
R – Resistance affects the power in an electrical circuit.
Explanation:
In physics, power refers to the rate at which energy is transferred or work is done. It is measured in watts (W), where one watt equals one joule of work done per second.
- Power is the rate at which work is done: This means that power tells us how quickly energy is being used or transferred. Mathematically, power (P) is given by the formula:
P=WtP = \frac{W}{t}P=tW
where WWW is work done, and ttt is time taken to do the work. - Objects with more mass require more power to move: According to Newton’s second law, force is needed to accelerate an object, and the force required increases with mass. Therefore, to accelerate a larger mass to the same velocity in the same time, more power is needed.
- Work done divided by time gives the power: This is a direct application of the definition of power. If you do a certain amount of work over a longer period, the power required is less. However, the same work done in a shorter time will require more power.
- Energy transfer per unit time is power: In many systems, energy is transferred between different forms (e.g., mechanical to electrical), and the rate of this transfer is another way to define power. For example, electrical power in a circuit is calculated as P=IVP = IVP=IV, where III is the current and VVV is the voltage.
- Resistance affects the power in an electrical circuit: In electrical circuits, power dissipation due to resistance is given by P=I2RP = I^2 RP=I2R, where RRR is the resistance. High resistance leads to more power being lost as heat, while low resistance reduces power loss.
