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RIO SALADO PHY112 FINAL (LESSONS 9-14) STUDY GUIDE 100% ACCURATE 2025  

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Which of the following is a true statement? A) Electric fields direct away from both positive and negative charges. B) Electric fields direct towards both positive and negative charges. C) Electric fields direct away from positive charges and towards negative charges. D) Electric fields direct towards positive charges and away from negative charges. - ANSWER-C) Electric fields direct away from positive charges and towards negative charges. The reason why humans cannot see infrared waves is because A) the waves are too short for human eyes to detect. B) the waves are too long for human eyes to detect. C) the waves are too fast for human eyes to detect. D) human eyes cannot detect electromagnetic waves. - ANSWER-B) the waves are too long for human eyes to detect. The speed of an electromagnetic wave depends on

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RIO SALADO PHY112 FINAL
(LESSONS 9-14) STUDY GUIDE 100%
ACCURATE 2025

, Which of the following is a true statement?

A) Electric fields direct away from both positive and negative charges.

B) Electric fields direct towards both positive and negative charges.

C) Electric fields direct away from positive charges and towards negative charges.

D) Electric fields direct towards positive charges and away from negative charges. -
ANSWER-C) Electric fields direct away from positive charges and towards negative
charges.

The reason why humans cannot see infrared waves is because

A) the waves are too short for human eyes to detect.

B) the waves are too long for human eyes to detect.

C) the waves are too fast for human eyes to detect.

D) human eyes cannot detect electromagnetic waves. - ANSWER-B) the waves are too
long for human eyes to detect.

The speed of an electromagnetic wave depends on

A) its frequency of wave oscillations.

B) its wavelength.

C) both of the above.

D) none of the above. - ANSWER-D) none of the above.

1. Which of the following statements regarding radio waves and sound waves is
accurate?
A. Sound waves are transverse waves.
B. Sound waves and radio waves travel at approximately the same speed.
C. Neither sound waves nor radio waves can travel through water.
D. None of the above statements are accurate. - ANSWER-Answer: D. None of the
above statements are accurate.

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