Question

A test was done with different watt light bulbs to see if the wattage affects how bright the light shines. The students bought 15 watt, 40 watt, 60 watt, and 75 watt light bulbs to test. The students then used a light meter to judge the brightness of the bulbs (unit: candela). The brightness of the bulbs was 15 watts = 0.5 candela, 40 watt = 0.8 candela, 60 watt = 1 candela, and 75 watt = 1.5 candela.
List at least 3 constants

Answer 1

Answer:

The factors that can change value during an experiment or between experiments, such as water temperature, are called variables, while those that stay the same, such as acceleration due to gravity at a certain location, are called constant