SCIN131 Week 1 Quiz, 2021 - American Military University

Your quiz has been submitted successfully. 3 / 3 points Which of the following is an observation? Question options: The universe began as a cosmic explosion called the Big Bang. The star closest to Earth is moving away from Earth at high speed. Matter is made of atoms. A body in motion stays in motion unless acted upon by force. Hide Feedback Great! This topic is discussed in Chapter 1 in the text. This is the scientific method. 3 / 3 points I have decided to jump off the tallest peak on my house into a swimming pool. The tallest peak is 7.3 meters. How high is this in feet? Question options: 33 18 97 24 13 Hide Feedback Good. This is a basic conversion problem. Discussed in Chapter 1 in the text. 0 / 3 points A room has dimensions of 8.00 ft × 12.0 ft × 16.0 ft. What is the volume of the room in yd3? (1 yd = 3 ft) Question options: 4.14 x 104 yd3 1.34 x 108 yd3 56.9 yd3 4.61 x 103 yd3 none of the above Hide Feedback This is a basic conversion problem, but with using exponents. Discussed in Chapter 1 in the text. 3 / 3 points The mass of a single copper atom is 1.055 × 10-22 g. This is the same mass as: Question options: μg mg ng kg A sailor circumnavigated the earth and covered 4,264,000 meters. Express this number in standard scientific notation. Question options: 4.264 × 10-7 m 4.264 × 106 m 4.264 × 10-6 m 4.264 × 107 m Hide Feedback Great! Scientific notation is discussed in Chapter 1. 3 / 3 points For the number .305, which of the zeroes are considered significant? Question options: Only the zero after the 2 Only the zero after the 4 Only the zero after the 3 All of the zeroes are significant. Hide Feedback Great! Significant figures are discussed in Chapter 1. 3 / 3 points Over-the-counter ibuprofen pain medication typically contains 200 mg capsules. Which of these is the equivalent mass of ibuprofen in grams? Question options: 200 x 10-1 g 200 x 10-3 g 200 x 103 g