Express the population of a city, 456,000, in scientific notation with three significant figures.

LON QUIZ I

Quiz
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Science
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Professional Development
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Hard
Noe Hermosa
Used 1+ times
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35 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
4.56 × 10⁵
4.560 × 10⁵
4.56 × 10⁶
45.6 × 10⁵
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Albert Einstein's theory of relativity, introduced in the early 20th century, fundamentally changed our understanding of which of the following concepts?
Heat and thermodynamics
Space and time
Atomic structure
Electromagnetic fields
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Thermodynamics involves the study of which of the following?
The relationship between heat, work, and energy
The motion of bodies under the influence of a system of forces
The fundamental nature of electromagnetic radiation
The mechanical properties of materials
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which of the following branches of physics focuses on the study of light and its interactions with matter?
Mechanics
Quantum Physics
Optics
Relativity
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Many students wear glasses to correct their vision. How do the lenses in eyeglasses use the principles of optics to improve a student's ability to see clearly?
Convex lenses are used to correct nearsightedness by converging light rays.
Concave lenses are used to correct nearsightedness by diverging light rays.
Convex lenses are used to correct farsightedness by diverging light rays.
Concave lenses are used to correct farsightedness by converging light rays.
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Electromagnetism is a branch of physics that deals with which of the following phenomena?
Motion and forces
Heat and temperature changes
Electric and magnetic fields and their interactions
Behavior of light as a wave
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
The discovery of the transistor in 1947 transformed which area of physics and technology?
Acoustics
Nuclear physics
Solid-state physics and electronics
Optics
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