[16] Which part of the visible region of the electromagnetic spectrum has the lo

Question

[16] Which part of the visible region of the electromagnetic spectrum has the lowest energy?
A ) The blue end.
B ) The yellow end.
C ) The red end.
D ) The ultraviolet end.

[17] Which of the following forces is greatest?
A ) Gravitational Force
B ) Electromotive Force
C ) Nuclear Force
D ) Coulombic Force

[18] As the distance between two oppositely charged particles is tripled, _____.
A ) the attractive force is one-third as large
B ) the attractive force increases by a factor of three
C ) the attractive force is one-ninth as large
D ) the repulsive force is one-ninth as large

[19] Temperature is generally proportional to a substance's _____.
A ) chemical energy
B ) vibrational potential energy
C ) rotational kinetic energy
D ) average translational kinetic energy

[20] The force of gravity between two bodies depends on their _____.
A ) masses and charges
B ) masses and distance apart
C ) charges and distance apart
D ) masses only

[21] Identify the correct statement below dealing with Newton's Second Law.
A ) Force and mass are inversely proportional to one another.
B ) Force and acceleration are inversely proportional to one another.
C ) Mass and acceleration are inversely proportional to one another.
D ) Mass and acceleration are directly proportional to one another.

[22] A box is moved from the floor to the top of a table.
A ) Work is done by the box.
B ) Potential energy of the box increases.
C ) Kinetic energy of the box is constant throughout the process.
D ) None of the above

[23] Light waves and sound waves both consist of vibrations. However, _____.
A ) sound waves require no medium for transmission
B ) sound and light waves both require a medium for transmission
C ) light waves require no medium for transmission
D ) light waves require a medium for transmission

[24] What would be the path of the moon if all the gravitational forces acting on it vanished to zero?
A) it would speed up
B) it would continue in a straight line
C) it would turn in a circle
D) none of the above

[25] How does the average kinetic energies per molecule compare in a mixture of oxygen and helium gases at the same temperature?
A) it is higher in the oxygen
B) it is higher in the helium
C) it is the same
D) none of the above

Explanation / Answer

16. D ) The ultraviolet end.

17. C ) Nuclear Force

18. C ) the attractive force is one-ninth as large

19. B ) vibrational potential energy

20. B ) masses and distance apart

21. B ) Force and acceleration are inversely proportional to one another

22. B ) Potential energy of the box increases.

23. C ) light waves require no medium for transmission

24. B) it would continue in a straight line

25. B) it is higher in the helium

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