What form do electromagnetic waves travel at, and how do waves carry energy:

Electromagnetic waves travel as electric and magnetic fields vibrating at right angles to each other. They carry energy through space without needing a medium, by the oscillation of these fields.

Why is light bright due to photon energy:

Light appears bright because it has many photons, and each photon carries energy. More energetic photons or more photons hitting your eye make light seem brighter.

Why is a photon the fastest particle:

Photons have no mass, so they always travel at the speed of light (about 300,000 km/s) in a vacuum, which is the fastest possible speed in the universe.

10 factors that would affect us if light was slower than sound:

• Seeing events would lag behind hearing them.

• Communication using light (like phones or internet) would be slower.

• Sunlight reaching Earth would be delayed.

• Solar energy would take longer to arrive.

• Vision-based navigation (like driving) would be delayed.

• Lightning would seem to strike after thunder.

• Space signals from satellites would take longer.

• Photosynthesis in plants would be slower.

• Time perception would change because our eyes get information slower.

• Electronics and lasers that rely on light would work much slower.

Why does the Sun produce light:

The Sun produces light because nuclear fusion in its core turns hydrogen into helium, releasing huge amounts of energy, which we see as light and feel as heat.