Match the term with the correct question it answers. How Far

Where?

How Far, in what direction

How Fast, in what direction

How Fast

1.
Position

2.
Distance

3.
Displacement

4.
Speed

5.
Velocity

Which of the following correctly describes what happens when an atomic bomb explodes? small pieces of fissionable material are joined and form a body with a mass greater than the critical mass, the relative number of neutrons escaping decreases, and a chain reaction and explosion result. large pieces of fissionable matter are brought together quickly and form a body with a mass smaller than the critical mass, the relative number of escaping neutrons increases, and a chain reaction and explosion result.