Which model of the atom resulted from JJ Thomson's cathode ray experiments?

• Nuclear Model

• Quantum Model

• Plum Pudding Model

• Bohr Model

What is the pictured model of the atom called?

• Dalton Model

• Bohr Model

• Quantum Model

• Plum Pudding Model

Which of the following was the first to propose the idea of atoms?

• Niels Bohr

• John Dalton

• Ernest Rutherford

• Democritus

Which of the following statements do not agree with the conclusions drawn by Ernest Rutherford in his famous gold foil experiment?

(select all that apply)

• Atoms have a negatively charged nucleus.

• Atoms are dense, solid, indivisible particles.

• Atoms have a very small nucleus surrounded by mostly empty space.

• Atoms have electrons suspended in a positively charged substance.

• Atoms have more than 99% of their mass in the dense nucleus at their center.

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NGSS.HS-PS1-8

Which of the following statements about atoms are NOT true?

(select all that apply)

• Most atoms cannot combine with other atoms.

• Chemical reactions divide atoms into smaller parts.

• Atoms of the same element may have different mass numbers.

• Atoms contain only protons.

• Isotopes can be made by adding or subtracting protons.

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NGSS.HS-PS1-7

Which of the following waves would have the lowest amount of energy?

• 
• 
• 
• All three waves have the same amount of energy.

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NGSS.HS-PS4-1

Which of the following accurately describes the relationship between wavelength and energy as frequency increases across the electromagnetic spectrum?

• Energy and wavelength are unrelated for waves on the electromagnetic spectrum.

• Wavelength decreases as energy remains constant across the electromagnetic spectrum.

• Wavelength increases as energy increases across the electromagnetic spectrum.

• Wavelength decreases as energy increases across the electromagnetic spectrum.

Tags

NGSS.HS-PS4-1

The energy of violet light is approximately twice that of red light. How do the wavelengths of violet and red light compare?

• The wavelength of violet light is sometimes greater than and sometimes less than the wavelength of red light.

• The wavelength of violet light is the same as the wavelength of red light.

• The wavelength of violent light is twice the wavelength of red light.

• The wavelength of violet light is half the wavelength of red light.

Tags

NGSS.HS-PS4-1

Frequency and wavelength of waves of electromagnetic radiation have a(n) _________________ relationship.

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NGSS.HS-PS4-1

Energy and wavelength of waves of electromagnetic radiation have a(n) _________________ relationship.

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NGSS.HS-PS4-1