Put one of your thumbs at arm's length in front of your face. Now focus on something in the background and look through one eye at a time. What do you notice about your thumb?
A. It appears to move more when it's closer.
B. It appears to move less when it's closer.
C. It appears to move the same when it's closer.
D. It disappears entirely when it's closer!
E. None of the above.
Ans: A. It appears to move more when it's closer.
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A kilogram of water 
is stirred using a 400 watt device for 5 minutes. At the end of this time the temperature of the water has increased by
How much heat was lost to the surroundings?
A. 90.1 kJ B. 57.3 kJ C. 82.6 kJ D. 38.9 kJ
A 90. kg person is sitting in a boat at rest with a mass of 100 kg. In the boat is a stone with a mass of 5.00 kg. The person throws the stone at 4.00 m/s horizontally in the NORTH direction. The velocity of the person and the boat after the throwing of the stone is
A. 2.00 m/s NORTH. B. 1.21 m/s SOUTH. C. 1.21 m/s NORTH. D. 0.11 m/s SOUTH. E. 0.11 m/s NORTH.
In about 14,000 AD, the North Pole of Earth will point at star ________.
A. Antares B. Vega C. Thuban D. Polaris
In the Local Group, most members are either dwarf ellipticals or spirals
Indicate whether the statement is true or false