Light and Fundamental Forces - Page 3
Questions
- What is electromagnetic radiation used for?
- How do photons carry electromagnetic force?
- Which of the four fundamental forces makes wax stick to a car?
- How did astronomers determine the time it takes for light to travel from the sun to the earth?
- What direction does gravity pull?
- How does light affect the universe?
- What does the weak force do?
- Who discovered the fundamental forces?
- How does reflection differ from refraction and diffraction?
- How are electromagnetic forces and gravity alike?
- How does refraction affect light?
- As a wave enters a different medium with no change in velocity what will happen to the wave?
- How is electromagnetic energy produced?
- The intensity of sunlight under the clear sky is 836 W/m2. The speed of light is 2.99792 × 108 m/s. How much electromagnetic energy is contained per cubic meter near the Earth’s surface?
- How does cosmic background radiation change the universe?
- Which is the strongest of the fundamental forces in the universe?
- How does gravity affect the bottom side of earth?
- How do scientists know how long it takes light to reach the earth from the sun?
- If a planet is twice as far from the sun at aphelion than at perihelion, then the strength of the gravitational force at aphelion will be how many times the force at perihelion?
- How does electromagnetic energy travel?