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Science 7005 Practice Test 3

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Science (7005)

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Science 7005 Practice Test 3

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Question 1 of 20

1. Question

0°C is what temperature in Fahrenheit?

0°F
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10°F
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27°F
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32°F
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Question 2 of 20

2. Question

Which of the following is the smallest part of any element?

Atom
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Proton
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Electron
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Molecule
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Question 3 of 20

3. Question

Why is water known as a universal solvent?

It is the most common liquid on Earth.
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It provides living things with essential minerals.
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It can dissolve many substances into it.
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It is an effective cleaning agent.
Correct Incorrect Correct answer

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Question 4 of 20

4. Question

Sharing or exchanging which of the following makes chemical reactions possible?

Nuclei
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Protons
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Neutrons
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Electrons
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Question 5 of 20

5. Question

A child swinging back and forth on a swing set demonstrates which of the following types of motion?

Periodic
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Linear
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Rotary
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Circular
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Question 6 of 20

6. Question

Which of the following scientists developed the three laws of motion?

Edmund Halley
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Isaac Newton
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Robert Hooke
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Gottfried Leibniz
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Question 7 of 20

7. Question

Which of the following fundamental forces is the weakest?

Gravity
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Electromagnetism
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Strong nuclear
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Weak nuclear
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Correct

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Question 8 of 20

8. Question

Which of the following statements describes an object achieving equilibrium?

An object moving at a constant speed
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An object moving at an increasing speed
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An object moving at a decreasing speed
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An object moving at a variable speed
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Question 9 of 20

9. Question

Which of the following statements describes the energy conversion that occurs when a spinning turbine is attached to a generator?

Light energy becomes chemical energy.
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Kinetic energy becomes light energy.
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Kinetic energy becomes electrical energy.
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Chemical energy becomes electrical energy.
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Question 10 of 20

10. Question

In a lever, moving which of the following can significantly reduce or increase the force required to lift an object?

Plank
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Fulcrum
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Screw
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Pulley
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Question 11 of 20

11. Question

An electric current involves the movement of which of the following subatomic particles?

Protons
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Quarks
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Electrons
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Neutrons
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Correct

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Question 12 of 20

12. Question

Which of the following measures how many times a sound wave cycles in one second?

Amplitude
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Frequency
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Timber
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Wavelength
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Correct

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Question 13 of 20

13. Question

Which of the following physical science fields involves the study of sound?

Dynamics
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Geophysics
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Biophysics
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Acoustics
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Question 14 of 20

14. Question

The physical science research that developed atomic weapons also led to advancements in which of the following fields?

Power generation
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Land excavation
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Mining
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Propulsion
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Question 15 of 20

15. Question

In 1909, many physicists hypothesized that particles within atoms were evenly spaced throughout, much like chocolate chips in a cookie. In their view, these particles were very light and would allow radiation to simply pass through. That year, scientists tested this theory by passing intense radiation through thin gold foil. To scientists’ surprise, some radiation particles bounced back, meaning they had hit something very dense and strong.

The observations scientists made in 1909 suggested the existence of which of the following atomic structures?

Neutrons
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Protons
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Nucleus
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Electrons
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Correct

Incorrect
Question 16 of 20

16. Question

Which of the following steps is central to drawing reasonable conclusions from data?

Choose test subjects.
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Create an experiment.
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Develop a hypothesis.
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Reject personal biases.
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Question 17 of 20

17. Question

In which of the following sections of a physics research paper would you get a sense of the paper’s content?

The discussion
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The bibliography
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The abstract
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The methods
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Question 18 of 20

18. Question

Which of the following statements describes why a physicist would read scientific journals about their field?

To uncover potential plagiarism
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To network with other physicists
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To keep up with the latest discoveries
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To see if those journals published their work
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Question 19 of 20

19. Question

Which of the following terms describes a group of atoms linked by atomic bonds?

Molecule
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Mixture
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System
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Angstrom
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Question 20 of 20

20. Question

Which of the following terms describes a system that cannot exchange energy or matter with its surroundings?

Open
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Isolated
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Closed
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Defined
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