CHAPTER 18 PRACTICE TEST

As a study aid, we have included complete solutions for each Practice Test problem at the end of this book.

  1. Express the ratio of 180 s to 4 min in simplest form.

  2. A person 1.8 m tall is photographed, and the film image is 20.0 mm high. Under the same conditions, how tall is a person whose film image is 14.5 mm high?

  3. The change L in length of a copper rod varies directly as the change T in temperature of the rod. Set up an equation for this relationship if L = 2.7 cm for T = 150 ° C . 

  4. Given that 1.00 in .  = 2.54 cm ,  what is the length (in in.) of a computer screen image that is 7.24 cm long?

  5. The perimeter of a rectangular solar panel is 210.0 in. The ratio of the length to the width is 7 to 3. What are the dimensions ...

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