SCIENCE Q2 FORCE, MOTION AND ENERGY
Cards (93)
- Demonstrated the magnetic effect based on the direction of current.
- Formulated the principle behind electromagnetic induction.
- Showed experimental evidence of electromagnetic waves and their link to light.
- Contributed in developing equations that showed the relationship of electricity and magnetism.
- Showed a current carrying wire behaves like a magnet.
- What produces electromagnetic waves?
- Are bundles of wave energy.
- is the unit used to measure the frequency of waves.
- a ____ is a disturbance that transfers energy.
- He formulated the Electromagnetic Wave Theory which says that an oscillating electric current should be capable of radiating energy in the form of electromagnetic waves.
- Most EM waves are invisible to the eye but detectable. Only the ____ is seen by humans.
- State the EM waves from longest to shortest wavelength.
- What EM wave is sometimes called heat rays?
- a disturbance in a field that carries energy and does not require a medium to travel.
- number of cycles a wave completes in one second; expressed in Hertz
- short for radio detecting and ranging. A way of detecting aircrafts and ships from a distance and estimating their locations.
- receives radio waves and convert them back to sounds
- attaches information to the radio signal by modulating it.
- the distance measured from one crest of a wave to the next crest or from one through to the second through.
- who discovered X-rays?
- The live audio and control rooms are connected by ____ for the exchange of audio and digital data signal during recording, mixing, and even editing of all audio-video elements digitally stored on hard drives.
- Used for "referencing" or for checking what the mix would sound like on the equipment.
- Processor should be reasonably fast enough to record, edit, mix, store, and master a copy of the record.
- Microphones and musical instruments are plugged into this, which is connected to the computer.
- Used for playing some digital instruments, recording, adding effects, and mixing different sources of sound signals.
- Commonly known as speakers but these give a sound close enough to the real sound input.
- Converts sound into electrical signal.
- Used for connecting audio interface, microphones, studio monitors, and different instruments.
- Many of the recording technology are founded entirely or partially on the relationship between electricity and magnetism known as
- ____ exert either a force of repulsion or attraction. same poles repel, opposite poles attract.
- If a force of ____ only is possible between an object and a magnet, then the object interacting with the magnet contains a ferromagnetic substance and is considered naturally magnetic.
- If a force of ____ is also possible between an object and a magnet, then the object interacting with the magnet may also be a permanent magnet or a temporarily magnetized ferromagnetic material.
- Materials which are attracted by a magnet are known as ____ _____. Iron, cobalt, nickel, and many alloys of these materials like steel and alnico are magnetic.
- Can be used to make permanent or temporary magnets unlike the non-magnetic materials which cannot.
- One way of magnetization.
- He discovered the electromagnetism during a class demonstration that a current-carrying wire caused a nearby magnetized compass needle to deflect.
- He conducted his famous induction ring experiment showing that current can be produced by sources of changing magnetic fields. This is the key principle to practical generation of electricity.
- are sources of electric fields which result in an attraction or repulsion of other nearby charges.
- a fundamental electrical property that is either of positive or negative type to which the mutual attractions or repulsions between protons or electrons is attributed.