Consider the planet Mars: Earth mass = 6.0 1024 kg = 9.3 Mars mass; Earth radius = 6380.km = 1.89 ...

Consider the planet Mars: Earth mass = 6.0  1024 kg = 9.3  Mars mass; Earth radius = 6380.km = 1.89  Mars radius What is the acceleration of gravity on Mars?
 
  What will be an ideal response?

Question 2

What is a possible reason why Venus does not have plate tectonics?
 
  A) it is too small
  B) its crust is too dry and stiff to break into plates
  C) it has no partially molten iron core
  D) Both A and B

Question 3

Misty throws a stone horizontally from the roof edge of a 50. meter high dormitory. It hits the ground at a point 60. m from the building.
 
  (a) Determine the horizontal component of velocity just before hitting the ground.
  (b) What vertical speed did it have just before hitting the ground?

Question 4

As a helium-filled dirigible rises in the atmosphere, the buoyancy force is expected to
 
  A) increase.
  B) remain constant.
  C) decrease.

Question 5

An object is thrown upwards with a speed of 14 m/s. How high above the projection point does it reach?
 
  A) 5.0 m
  B) 10 m
  C) 15 m
  D) 20 m
  E) 25 m

Question 6

A golf ball traveling 3 m/s to the right collides in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the speed of the golf ball immediately after the collision is
 
  A) slightly less than 3 m/s.
  B) much less than 3 m/s.
  C) slightly greater than 3 m/s.
  D) equal to 3 m/s.