1 00:00:00,000 --> 00:00:11,589 Hello everyone this is Kory and we are going to continue talking about heat and light. Today we 2 00:00:11,589 --> 00:00:25,410 will be discussing transforming light into heat. When light energy hits an object some of the 3 00:00:25,410 --> 00:00:37,950 energy is absorbed by the object. So let's say an object like a dog is hit 4 00:00:37,950 --> 00:00:45,829 with light energy from the Sun. That dog will take in some of the light energy. 5 00:00:45,829 --> 00:00:57,689 The object will absorb some of the light energy. This energy makes the molecules 6 00:00:57,689 --> 00:01:07,230 of the object vibrate faster. So the molecules of the dog will vibrate faster. 7 00:01:07,230 --> 00:01:18,040 They will essentially be shaking more quickly. When we touch the object, we feel 8 00:01:18,040 --> 00:01:28,900 this vibration as heat. So when you pet the dog, the dog will feel warmer. The 9 00:01:28,900 --> 00:01:40,540 fast vibrations of the molecules in the dog are felt as heat. More light energy 10 00:01:40,540 --> 00:01:53,159 is absorbed by dark colors so more light energy is transformed into heat in 11 00:01:53,159 --> 00:02:00,209 in objects that are dark. 12 00:02:00,209 --> 00:02:05,209 So dark colors absorb more light energy. 13 00:02:06,849 --> 00:02:10,229 They take in more light energy. 14 00:02:10,229 --> 00:02:15,229 So more light energy is transformed into heat 15 00:02:16,349 --> 00:02:23,090 in these dark objects. 16 00:02:23,090 --> 00:02:27,490 This is the opposite for light colored objects. 17 00:02:27,490 --> 00:02:34,490 Objects that have a lighter color reflect light energy. 18 00:02:34,490 --> 00:02:40,490 Light colors do not absorb much light energy. 19 00:02:40,490 --> 00:02:50,490 This means less light energy is transformed into heat energy in light-colored objects. 20 00:02:50,490 --> 00:02:55,490 Okay, that's all for now. Hope you're doing well. Goodbye!