1. A heavy crate falls from a high
flying airplane just as it flies directly above a shiny
Black Lexus parked in a car lot. The plane moves in the
leftward direction. Relative to the Lexus, where will the crate
crash? 
a. on top the Lexus 
b. at a point to the left of the
Lexus 
c. at a point to the right of
the Lexus 
d nota 
2. In the previous problem, if the
airplane flies 50.0 m high, how long does it take the crate to hit
the ground? Choose the closest answer to your computation. 
a. 2.3 seconds 
b. 3.2 seconds 
c. 1.0 second 
3. Suppose the airplane in the previous problem
was flying at 30.0 m/s. Where does the crate land? 
a. on top of the Lexus 
b. about 96 m from the Lexus 
c. about 69 m from the
Lexus 
4. In the absence of air resistance,
the horizontal component V_{H} of a projectile is

a. constant 
b. is not constant

5. True or False. If you fire a
rifle at a distant target at the same vertical height as the gun,
to hit the target you should aim exactly at the target.

a. True 
b. False 
6. A projectile is fired straight
upward with speed 1000 m/s . What is the speed when the projectile
reaches the top of the trajectory? 
a. 1000 m/s 
b. 100 m/s 
c. nota 
7. A projectile is fired with
speed 1410 m/s at an angle of 45 ^{0} with the horizontal.
What is the horizontal component V_{H} of the projectile?

a.1000 m/s 
b.100 m/s 
c. 0 m/s 
8. A NASA spacecraft orbits
closely in a circle around the Moon. The orbital speed is

a. greater than 8 km/s

b. less than 8 km/s

c. equal to 8 km/s

d. nota 
9. What will be the speed of a
spacecraft in close circular orbit around a 20 m asteroid?

a. greater than 8 km/s

b. equal to 8 km/s

c. nota 
10. True or False. If a
satellite moves in a circular orbit, during its motion its kinetic
energy changes.

a. True 
b. False 
11. True or False. If a
satellite moves in an elliptical orbit, during its motion its kinetic
energy does not change. 
a. True 
b. False 
12. True or False. If a
satellite moves in an elliptical orbit, during its motion its potential
energy does not change. 
a. True 
b. False 
13. A satellite moves in an
elliptical orbit around a planet. During its motion, its kinetic
energy is greatest 
a. at a point nearest the planet 
b. at a point farthest away from the
planet 
c. kinetic energy does not
change 
14. A satellite moves in an
elliptical orbit around a planet. During its motion, its potential
energy is greatest 
a. at a point nearest the planet 
b. potential energy does not
change 
c. nota 
In
the next two problems below, a
projectile is fired
horizontally with speed V and from height h above the ground.
No air resistance. 
15. The
formula for the vertical height is 
a.
h = gt 
b.
h = (1/2)*gt^{2}. 
c.
nota 
16.
The formula for the horizontal distance
D traveled is 
a.
D = g*t 
b.
D = V*t 
17. What is the
formula for the magnitude F of the attractive force between two point
masses m and M a distance D from each other? 
18. Two
planets are separated by a distance D and the magnitude of the
force of attraction between them is F. If the distance between the
planets is increased by a factor of 2, the magnitude of the force of
attraction will be 
a. 4F 
b. F/4 
c. F/8 
d. F/16 