A student studies by the light of a desk lamp. The intensity of the light, I, in lumens is inversely proportional to the square of the distance, d, in meters between the study materials and the lamp. 500 The formula is given by I = d? If the distance between the student's study materials and the lamp doubles, what happens to the intensity of the light? O The intensity of the light is 2 times as intense. O The intensity of the light is 4 times as intense. O The intensity of the light is 2 times less intense. O The intensity of the light is 4 times less intense.
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
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