Number Line

On a number line, which of the following points represents the position of an electron in a hydrogen atom's energy level transition?

• n=1 to n=2

• n=2 to n=3

• n=3 to n=4

• n=4 to n=5

Which of the following best describes the concept of a number line in quantum mechanics?

• A line representing possible energy levels of an electron

• A line representing the distance between two atoms

• A line representing the speed of light

• A line representing the gravitational force

In a physics experiment, a number line is used to measure the displacement of an object. If the object moves from -3 to 5, what is the total displacement?

• 8 units

• 5 units

• 3 units

• -8 units

Which scientific principle can be illustrated using a number line to show the position of particles?

• Heisenberg's Uncertainty Principle

• Newton's First Law

• Archimedes' Principle

• Pascal's Law

• 14

• 12

• 10

• 8

A number line is used to represent the pH scale in chemistry. Which of the following pH values represents a neutral solution?

• 7

• 0

• 14

• 7.5

In biology, a number line can be used to represent the growth stages of an organism. If stage 1 is at position 0 and stage 5 is at position 10, what is the position of stage 3?

• 6

• 4

• 2

• 8

Which of the following uses a number line to represent the frequency of a wave in physics?

• Hertz (Hz)

• Newton (N)

• Joule (J)

• Pascal (Pa)

Tags

NGSS.HS-PS4-1

In a chemical reaction, the number line is used to represent the change in concentration of a reactant. If the concentration decreases from 10 M to 2 M, what is the change?

• 8 M

• 12 M

• 5 M

• 2 M

Tags

NGSS.HS-PS1-5

On a number line, which point represents absolute zero in temperature?

• 0 K

• -273.15 K

• 273.15 K

• 100 K