Q: At a weightlifting competition, two competitors lifted the same weight to the same height. The second competitor accomplished the lift 2 seconds faster than the first competitor. This demonstrated that the second competitor had more OPTIONS:
- energy than the first.
- inertia than the first.
- power than the first.
- work than the first.
A: power than the first.

Q: Which event would most likely cause a rapid extinction of organisms? OPTIONS:
- a large asteroid impact
- regional drought
- new glacier formation
- a decrease in the growth of weeds
A: a large asteroid impact

Q: Naturally occurring variations within a species are mainly the result of mutations and OPTIONS:
- sexual reproduction
- dynamic equilibrium
- metabolism
- camouflage
A: sexual reproduction

Q: Which of the following represents the velocity of a moving object? OPTIONS:
- 40
- 40 m north
- 40 m/s
- 40 m/s north
A:
40 m/s north