Tahrir Square calm on Sunday morning

What is the primary unit of time that helps us measure short durations?

• Millisecond

• Second

• Minute

• Hour

How is a second defined in terms of atomic properties?

• By the flow of water

• By the orbit of the moon

• By the vibration of cesium atoms

• By the rotation of the Earth

Which of the following is NOT a common use of seconds?

• Scientific experiments

• Measuring long distances

• Cooking recipes

• Timing a race

Why are seconds important in scientific experiments?

• They are used to measure temperature

• They are the longest unit of time

• They are easier to calculate than minutes

• They provide a precise measurement of time

In what context is the accuracy of a second most crucial?

• In casual conversations

• In setting alarm clocks

• In GPS technology

• In writing novels