The property of matter that resists changes in motion is called... a) inertia
b) gravity
c) weight
d) friction

State one advantage and one disadvantage of using a plane mirrior as a driving mirrior

15. give an example for some particles or waves that are moving faster than light in everyday life 16. what is a laser? 17. what is an oscilloscope? 18. what does it means practically that nothing is faster than light in vacuum? 19. what is vacuum?

Which example has gravitational potential energy? a.a horse slowing down from a run b.an apple about to fall from a tree branch c.a bicycle being pedaled down a horizontal path d.beaker sitting on the floor