Question

guided practice
physical science
on a nasa mission to mars, a vehicle must blast off from earth with enough speed to escape earths gravity, travel a g
precisely on a planet that is moving rapidly around the sun.
this is an example illustrating the \big idea\ about _.
a. forces and motion
b. matter and change
c. energy

Explanation:

The problem involves a vehicle's motion (blast - off, traveling) and the force of gravity. Forces (gravity) act on the vehicle, affecting its motion (escape from Earth, travel). "Matter and change" would focus on physical/chemical changes of matter, which is not the case here. "Energy" is too broad without the direct connection to motion and force as in this context.

Answer:

A. forces and motion