1. A plane travels a distance of 500 kilometers in 3600 seconds. What is the
average speed of the plane?
1.39 m/s
69.4 m/s
139 m/s
0.694 m/s

Work = force × a. work b. energy c. distance d. momentum

One number is said to be an "order of magnitude" larger than another number if choose one: a. it is 10 times larger. b. it is 5 times larger. c. it is 3 times larger. d. it is 100 times larger. e. it is 2 times larger.

In which item is energy stored in the form of gravitational potential energy? a. a slice of bread b. a compressed spring c. an apple on a tree d. a stretched bow string