Physics Semester 1 Review

2. The atomic _____ gives the number of Protons and Neutrons in an element.
4. The type of friction seen in object motion.
7. The type of velocity seen when air resistance becomes equal to gravitational force on an object.
9. The acceleration always created from an object in circular motion.
10. The physical property seen when an object is accelerating.
11. The time it takes for an object to decay to half of its original mass.
15. The amount an object is located from the origin.
18. Where to place the vector denoting gravity.
20. The physical property term applied to a changing velocity.
22. The force that attracts particles within an atom and holds it together.
23. The space within an atom where there is a changing chance for electrons to be.
24. The change in displacement over time.
26. The negatively charged particle.
27. The physical property given to a force being applied a certain distance from a fulcrum.
28. The part of the atom that includes only the Protons and Neutrons.

1. The neutrally charged particle.
3. The type of velocity that is concerned with changing angles.
5. The types of atoms that contain different numbers of Neutrons but the same number of Protons.
6. The numbers that increase accuracy of a data point.
8. The acceleration seen in a system that has a constantly moving object.
12. The term used for a quantity that has both a magnitude and direction.
13. The atomic _____ gives the amount of Protons in the atom, which is specific to each element.
14. The type of friction that keeps objects in place.
16. The positively charged particle.
17. The shape created from the trajectory of a projectile.
19. The amount an object has traveled during a set period of time.
21. The term used to describe a system with no accelerating forces.
25. The fundamental force that attracts objects at close range, the weakest force.