What tool did Galileo use to prove that the Moon was not perfect?
a. microscope
b. telescope
c. quadranoscope
d. thermometer
e. anemometer
b
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A car starts out when the air temperature is 288 K and the absolute (total) air pressure in the tires is 500 kPa. After driving a while,
the temperature of the air in the tires increases to 298 K. What is the pressure in the tires at that point, assuming their volume does not change? A) 129 kPa B) 483 kPa C) 507 kPa D) 517 kPa E) 532 kPa
A beta particle is another name for a helium nucleus
a. True b. False Indicate whether the statement is true or false
An 8000 kg satellite is launched from the surface of the earth, and injected into a circular orbit at an altitude of 100 km above the surface of the earth. The kinetic energy of the satellite in the circular orbit is 
A. 
B. 
C. 
D. 
E. 
Why do scientists say that evolution is a "theory"?
A) because it explains a great deal about life and is supported by an enormous body of evidence B) because they are not very confident that it really happened C) because it's really just a guess about how life developed on Earth D) because it is supported by only a small amount of evidence