Across
- 1. "My teacher calls himself"
- 3. The area of total darkness in the shadow caused by an eclipse.
- 5. Device that changes force needed to do work.
- 6. The force of gravity on a body.
- 9. One of the scalar versions of velocity and displacement.
- 10. A particles are just electrons that come from the nucleius when a neutron changes into a proton.
- 12. Ratio of potential difference across device to current through it.
- 13. Antiparticle equivalent of electron.
- 14. the distance travelled in a particular direction from a specified origin
- 16. Condition in which net force is equal to zero. Condition in which net torque on object is zero.
- 18. A diagram/bookkeeping device that helps in conceptualizing and calculating interactions between particles in space-time
Down
- 2. Are made up of neutrons and protons, n and p.
- 4. Force opposing relative motion of two objects are in contact.
- 6. Power- the rate of doing work;unit of power, one joule per second.
- 7. He developed the general theory of relativity, one of the two pillars of modern physics.
- 8. Device used to measure very small currents.
- 11. Atomic nuclei having same number of protons but different numbers of neutrons.
- 15. Unit of electrical charge. Charge caused by flow of one ampere for one second.
- 17. Light that generally comes from the electrons in very hot object.
- 19. Non-material property capable of causing changes in matter.