PHYSICAL SCIENCE INTRODUCTION EXAMINATION. ALL
EXAM REVISION QUESTIONS AND CORRECT ANSWERS
(ALREADY GRADED A+) (2024 UPDATE) 100% GUARANTEED
Refraction - ANSWER- The bending of a wave as it passes at an angle from one medium to
another
Voltage - ANSWER- Measure of potential energy generated by separated charge.
Magnetosphere - ANSWER- The area surrounding Earth that is influenced by Earth's magnetic
field
Infrared Waves - ANSWER- Electromagnetic waves that have a wavelength between about 1
mm and 750 billionths of a meter.
Electric Field - ANSWER- a field of force surrounding a charged particle
Alternating Current (AC) - ANSWER- Current generated by electrons changing the direction
in which they move
Direct Current (DC) - ANSWER- Electrical current that flows in only one direction through a
wire; found in batteries
Reverberation - ANSWER- the persistence of a sound after its source has stopped
Conductor - ANSWER- A material that allows heat and electricity to pass through it.
Insulator - ANSWER- A material that does not allow heat or electrons to move through it easily.
, Electromagnet - ANSWER- All of the different types of electromagnetic radiation according to
wavelength and frequency
Law of Reflection - ANSWER- States that the angle of incidence is equal to the angle of
reflection
Electromagnetic Waves - ANSWER- A form of energy that can move through the vacuum of
space.
Transverse Wave - ANSWER- A wave in which the vibration is at right angles to the direction
in which the wave is traveling.
Electric Force - ANSWER- The attraction or repulsion between electric charges
Transformer - ANSWER- A device that increases or decreases the voltage of alternating current
Ultraviolet Waves - ANSWER- a type of energy that comes to Earth from the Sun, can damage
skin and cause cancer, and mostly absorbed by the ozone layer
Diffraction - ANSWER- Occurs when an object causes a wave to change direction and bend
around it
Compressional Waves - ANSWER- a wave in which the energy travels in the same direction
as the wave.
Resistance - ANSWER- A material's opposition to the flow of electric current.
Ohm's Law - ANSWER- Electrical law that states that the current in a wire(I) is equal to the
voltage
EXAM REVISION QUESTIONS AND CORRECT ANSWERS
(ALREADY GRADED A+) (2024 UPDATE) 100% GUARANTEED
Refraction - ANSWER- The bending of a wave as it passes at an angle from one medium to
another
Voltage - ANSWER- Measure of potential energy generated by separated charge.
Magnetosphere - ANSWER- The area surrounding Earth that is influenced by Earth's magnetic
field
Infrared Waves - ANSWER- Electromagnetic waves that have a wavelength between about 1
mm and 750 billionths of a meter.
Electric Field - ANSWER- a field of force surrounding a charged particle
Alternating Current (AC) - ANSWER- Current generated by electrons changing the direction
in which they move
Direct Current (DC) - ANSWER- Electrical current that flows in only one direction through a
wire; found in batteries
Reverberation - ANSWER- the persistence of a sound after its source has stopped
Conductor - ANSWER- A material that allows heat and electricity to pass through it.
Insulator - ANSWER- A material that does not allow heat or electrons to move through it easily.
, Electromagnet - ANSWER- All of the different types of electromagnetic radiation according to
wavelength and frequency
Law of Reflection - ANSWER- States that the angle of incidence is equal to the angle of
reflection
Electromagnetic Waves - ANSWER- A form of energy that can move through the vacuum of
space.
Transverse Wave - ANSWER- A wave in which the vibration is at right angles to the direction
in which the wave is traveling.
Electric Force - ANSWER- The attraction or repulsion between electric charges
Transformer - ANSWER- A device that increases or decreases the voltage of alternating current
Ultraviolet Waves - ANSWER- a type of energy that comes to Earth from the Sun, can damage
skin and cause cancer, and mostly absorbed by the ozone layer
Diffraction - ANSWER- Occurs when an object causes a wave to change direction and bend
around it
Compressional Waves - ANSWER- a wave in which the energy travels in the same direction
as the wave.
Resistance - ANSWER- A material's opposition to the flow of electric current.
Ohm's Law - ANSWER- Electrical law that states that the current in a wire(I) is equal to the
voltage
