ELCA Physics - Light

What characteristic of light did Huygens provide evidence of?

• Particle nature

• Wave nature

• Quantum nature

• Dual nature

What phenomena did Einstein explain in the theory he published in 1905?

• Theory of Relativity

• Quantum Mechanics

• Photoelectric Effect

• General Theory of Relativity

__________ are massless bundles of concentrated electromagnetic energy.

• Photons
• Protons

• Neutrons

• Electrons

What is the modern theory of light?

• Wave theory

• Particle theory

• Dual Nature of Light

• Electromagnetic theory

Circle the letter beside the correct speed of light.

• 300,000 m/s

• 300,000,000 m/s

• 30,000 km/s

• 300,000,000 km/s

Albert Michelson received the Nobel Prize for using a system of mirrors to measure __________.

• the speed of light

• gravitational waves

• the distance to the moon

• earth's magnetic field

How much time does it take light to travel from the sun to Earth?

• 8 minutes and 20 seconds

• 10 minutes

• 5 minutes

• 15 minutes

What is a light-year?

• The time it takes for light to travel in one year

• The distance that light travels in one year

• A type of star

• A measurement of light intensity

What is the source of the energy in light?

• Vibrating electrons

• Electricity

• Chemical reactions

• Photosynthesis

The energy in an electromagnetic wave is created by _________.

• electricity

• magnetism

• vibrating electrons

• coronae