The division of the geological history of the Earth into sets of distinct intervals is referred to as the geological
A) time scale
B) record
C) spectrum
D) ladder
Question 2A 30. kg child stands at one end of a floating 20. kg canoe that is 10. ft long. The child walks to the other end of the canoe. How far does the canoe move in the water assuming water friction is negligible?
A) 10. ft
B) 4.0 ft
C) 6.0 ft
D) 8.0 ft
E) 2.0 ft
Question 3The organisms with the next highest Encephalization Quotient (EQ) ratios after humans are
A) dolphins
B) humans
C) whales
D) chimps
Question 4The surface of Venus is much hotter than the Earth because it
A) has no magnetic field
B) has a very thick atmosphere of carbon dioxide
C) has a much higher rate of volcanic activity
D) is closer to the Sun
Question 5A 2.0 kg mass is attached to the end of a horizontal spring (k = 50. N/m) and set into simple harmonic motion with an amplitude of 10. cm. What is the total mechanical energy of this system?
A) 0.02 J
B) 25 J
C) 0.25 J
D) 1.00 J
E) 2.5 J
Question 6A horizontal wire carries a current straight toward you. From your point of view, the magnetic field caused by this current
A) points directly away from you.
B) circles the wire in a clockwise direction.
C) points to the left.
D) circles the wire in a counter-clockwise direction.
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