The motion of a car in relation to a reference point can be described by its position and direction. Speed can be determined by measuring the distance traveled in a specific time period.
A moving car can be an object in motion. In relation to a reference point, such as a stationary tree, the car's position and direction of motion can be described. For example, the car may be moving to the right of the tree.
To determine the car's speed, you can measure the distance it travels in a certain amount of time. For instance, if the car travels 100 meters in 10 seconds, its speed would be 10 meters per second (m/s).
In summary, by observing the position and direction of motion of an object in relation to a reference point, you can describe its motion. And by measuring the distance it covers in a given time period, you can determine its speed.
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b. Lithium
c. Nitrogen
d. Magnesium
Answer:
Refraction of light occurs when light is passed through something. Have you ever seen a rainbow light effect through a window? That is light refraction, where light bends! :)
Power is defined in physics as the quantity of energy transported or transformed per unit of time. To calculate power, divide the amount of energy transferred by time.
Power is defined in physics as the quantity of energy transported or transformed per unit of time. The watt is the unit of power in the International System of Units, equivalent to one joule per second. Power is also referred to as activity in ancient writings. A scalar quantity is a power.
The formula for power is given as the ratio of energy transferred to the time taken.
Its SI unit is Watt, while the SI units for energy and time are seconds. Therefore, we can write,
Power = Energy transfer / Time taken
Joule = Watt / Second
Hence, To calculate power, divide the amount of energy transferred by time.
Learn more about Power here:
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Heterogeneous mixture
Element
Compound