Physics Definitions
1. Speed – Distance travelled per unit time.
2. Velocity – Rate of change of displacement.
3. Acceleration – Rate of change of velocity.
4. Electromagnetic induction is the phenomenon of producing an emf in a circuit due to changing magnetic field.
5. Amplitude refers to the maximum displacement from rest position.
6. Wavelength refers to the distance between one crest to the next successive crest.
7. Frequency refers to the number of waves produced per unit time.
8. Period refers to the time taken for one complete wave.
9. Speed refers to the distance travelled by the wave per unit time.
10. Echo is reflected sound from hard and smooth surfaces.
11. Sound is produced by vibrations placed in a medium
12. A Wave is a phenomenon in which energy is transferred through vibrations
13. Transverse waves are waves where the direction of travel is perpendicular to the direction of vibration of particle in a medium. (Light/water are transverse waves)
14. Longitudinal waves are waves where the direction of travel is parallel to the direction of vibration of particles in a medium. (Sound is longitudinal wave)
15. Kinetic energy – The ability to do work due to the object’s speed.
16. Gravitational Potential energy – The ability to do work due to the object’s height.
17. Inertia is an object’s resistance to a change in velocity. (Heavier objects have greater inertia)
18. Work is done when an object moves in the same direction of the force acting on it.
19. Refraction is the bending of light ray as it travels across 2 different mediums.
20.Density – Mass per unit volume
No comments:
Post a Comment