Understanding Carbon-14 Dating

What is the primary use of carbon-14 dating?

• To predict future geological events

• To determine the age of archaeological artifacts

• To analyze the chemical composition of stars

• To measure the temperature of ancient climates

Where do cosmic rays, which contribute to the formation of carbon-14, originate?

• From the Earth's core

• From oceanic currents

• From the Sun and exploding stars

• From volcanic eruptions

How do plants and animals maintain a constant level of carbon-14 while they are alive?

• By absorbing it from the soil

• By photosynthesis and eating plants

• By consuming water

• By exchanging it with the atmosphere

What happens to the carbon-14 in an organism after it dies?

• It increases rapidly

• It transforms into carbon-12

• It starts to decay

• It remains constant

What is the half-life of carbon-14?

• 100 years

• 5730 years

• 1000 years

• 10,000 years

In the example of the Pharaoh, what was the initial number of carbon-14 atoms per gram of carbon?

• 5.02 x 10^10

• 3.21 x 10^10

• 1.21 x 10^10

• 7.89 x 10^10

What mathematical constant is used in the carbon-14 decay formula?

• Planck's constant

• Golden ratio

• Euler's number (e)

• Pi

What is the decay constant in the carbon-14 dating formula?

• Half of the half-life

• Natural log of 2 divided by the half-life

• Square root of 2

• Natural log of 10

How is the age of an artifact determined using carbon-14 dating?

• By comparing the current carbon-14 level to the initial level

• By measuring the increase in carbon-14

• By analyzing the color change in the artifact

• By counting the number of carbon atoms

In the Pharaoh example, how many years ago did he die according to the carbon-14 dating?

• 1677 BCE

• 2019 CE

• 5730 BCE

• 3696 BCE