Across
- 5. Forces acting on an object that combine and form a net force of zero.
- 6. The energy in an electric current.
- 8. Anything that has mass and takes up space.
- 9. A disturbance that transfers energy from one place to another without transferring matter.
- 16. A measure of how hard it is to stop a moving object.
- 17. Forces acting on an object that combine and form a net force that is not zero.
- 18. The sum of the kinetic energy and the potential energy of the particles that make up the object.
- 21. An atom that has a charge because it has gained or lost electrons.
- 22. A state of matter without a definite shape or a definite volume.
- 23. The ability of one material to dissolve in another.
- 24. A mixture in which two or more substances are evenly mixed, but not bonded together.
- 25. The forces two objects apply to each other.
- 26. A push or pull on an object.
- 28. The energy stored in and released from the nucleus of an atom.
- 30. The combination of all forces acting on an object.
- 32. The energy stored in and released from the bonds between atoms.
- 33. A substance made of two or more elements that are chemically joined in a specific combination.
- 34. In circular motion, a force that acts perpendicular to the direction of motion, toward the center of the curve.
- 36. The amount of matter in an object.
- 37. The mass per unit volume of a substance.
- 38. The gravitational force exerted on an object.
- 39. A state of matter with a definite shape and volume.
- 40. The region at the center of an atom that contains most of the mass of the atom.
Down
- 1. Matter with a composition that is always the same.
- 2. A mixture in which the substances are not evenly mixed.
- 3. An attractive force that exists between all objects that have mass.
- 4. Energy due to motion.
- 7. A force that resists the motion of two surfaces that are touching.
- 8. The sum of the potential energy and the kinetic energy in a system.
- 10. A small particle that is the building block of matter.
- 11. The ability to cause change.
- 12. A negatively charged particle that occupies the space in an atom outside the nucleus.
- 13. The amount of space a sample of matter occupies.
- 14. A positively charged particle in the nucleus of an atom.
- 15. The amount of matter in an object.
- 19. An uncharged particle in the nucleus of an atom.
- 20. One of two or more atoms of an element having the same number of protons, but a different number of neutrons.
- 21. The tendency of an object to resist a change in motion.
- 27. The transfer of energy that occurs when a force makes an object move in the direction of the force.
- 29. A state of matter with a definite volume but not a definite shape.
- 31. A substance made of only kind of atom.
- 32. Any motion in which an object is moving along a curved path.
- 35. Stored energy due to the interaction between objects or particles.