Physical science

5. Force of attraction that depends on the mass of two objects and the distance between them.
6. are the basic particles of the chemical elements.An atom
7. A change in velocity over time
9. capacity of one or another being active
10. directions
11. current The electric current that changes its direction periodically

1. Two or more waves that combine to produce a wave with a larger amplitude
2. by an electromagnetically bound swarm of electrons.
3. any substance that has mass and takes up space by having volume
4. balanced force equal force acting on a object in
6. A negatively charged ion
8. of a nucleus of protons and generally neutrons,
12. A body immersed in fluid experiences an apparent loss in weight which is equal to the weight