Thomas goes into his room to do his homework. He turns on his desk lamp, which uses a 60- watt (60 W)light bulb. After an hour he finishes his homework and reaches to turn off the
lamp. When he touches the top of the lamp, he notices that it feels warm. Why does the top of
the lamp feel warm?* mm

Some of the electrical energy was changed to heat.
O Some of the electrical energy was destroyed.
The light bulb used more watts than it needed to.
The light bulb was faulty and did not work correctly.
W

20 point pls brianliest 1. what does a red shift mean? blue shift? 2. describe the big bang theory. according to this theory, how old is the universe? 3. scientists believe the universe is expanding. what is the evidence that supports this? 4. describe a nebula. 5. describe the 3 types of galaxies. what is a barred spiral galaxy? 6. what is a light year? how far is alpha centauri from earth? 7. describe the universal law of gravitation. be sure to include gravitational force between two objects. 8. describe the planets’ orbits around the sun. 9. what is the asteroid belt? where is it located? 10. describe rotation and revolution of earth. what determines an earth day and year? 11. how do galaxies exist? 12. compare and contrast the inner and outer planets. 13. what causes the seasons?