Number Line

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

• -1

• 0

• 1

• 2

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

• A line representing possible positions of a particle

• A line representing possible energy levels of a particle

• A line representing possible velocities of a particle

• A line representing possible charges of a particle

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

• 2

• 5

• 8

• -8

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

• Heisenberg's Uncertainty Principle

• Pauli Exclusion Principle

• Conservation of Energy

• Newton's Third Law

On a number line, if point A is at -2 and point B is at 3, what is the distance between the two points?

• 1

• 3

• 5

• 7

How can a number line be used to explain the concept of potential energy in a gravitational field?

• By showing the height of an object above the ground

• By showing the mass of an object

• By showing the speed of an object

• By showing the charge of an object

Tags

NGSS.MS-PS3-2

In a chemical reaction, the number line can be used to represent the change in energy. If the reaction starts at 10 kJ and ends at -5 kJ, what is the change in energy?

• -15 kJ

• 5 kJ

• 15 kJ

• -5 kJ

Tags

NGSS.MS-PS3-5

Which of the following uses a number line to represent the pH scale in chemistry?

• A line from 0 to 14

• A line from -7 to 7

• A line from 1 to 10

• A line from -14 to 0

In biology, a number line can be used to represent the growth of a population over time. If the population starts at 100 and grows to 500, what is the increase?

• 100

• 200

• 300

• 400

How can a number line be used to illustrate the concept of half-life in radioactive decay?

• By showing the time intervals at which half of the substance decays

• By showing the initial amount of substance

• By showing the final amount of substance

• By showing the rate of decay

Tags

NGSS.HS-PS1-8