Answer the following statement(s) true (T) or false (F)
1. The magnitude of the normal force on a box sitting on an incline is equal to that of its weight.
2. Putting wider tires on your car will clearly give you more traction
3. Assume that the coefficient of static friction between your car’s tires and a certain road surface is about 0.75. Your car can climb a 45° slope.
4. We can express the kinetic friction law in the form 
5. A car with four-wheel drive can climb a steeper slope than a car with two-wheel drive.
1. FALSE
2. FALSE
3. FALSE
4. FALSE
5. TRUE
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The surface of the terrestrial planet ______________ cannot be seen from Earth
Fill in the blank(s) with correct word
If you focus a store-bought telescope at the full Moon on a typical clear night, the full Moon will be viewed as _________________
a. right-side up b. upside down c. a dot in the sky d. the color red
Which of the following caused the Moon to show (nearly) the same face to the Earth at all times?
A) tidal friction B) spring tides C) conservation of energy D) atmospheric drag E) gravitational encounters
What did Tycho do that advanced astronomy significantly?
a. He realized that orbits didn’t have to be circles, they could be ellipses. b. He made more accurate observations than anyone before him. c. He thought of the idea of circles moving on circles (epicycles) to explain planetary motion.