HEAT, LIGHT, SOUND, ELECTRICITY (SCIENCE G-5)

HEAT, LIGHT, SOUND, ELECTRICITY (SCIENCE G-5)

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LIGHT

- interacts with matter. It may be transmitted, reflected, absorbed , or refracted.

-         It also plays an important role in everyday life. It may be described in terms of wavelength, amplitude, and frequency.

TRANSMISSION OF LIGHT

TRANSPARENT MATERIALS

TRANSLUSLUCENT MATERIALS

OPAQUE MATERIALS

REFLECTION

refers to the bouncing off of light as it hits the object’s surfaces.

REFRACTION

is the bending of light due to a change in the medium it travels.

DISPERSION

is the separation of white light into different colors. 

HEAT

refers to the flow of energy from a high temperature object to a low temperature object.

THERMAL ENERGY

is associated with the motion of the particles.

SOUND

is produced by vibrating objects.

PARTS OF WAVES

equilibrium

amplitude

crest

trough

wavelength

VOICE

is produced by the vibration of the vocal cord.

PITCH

is determined by the frequency of sound.

INTENSITY

determines the sound’s loudness.

 

MAGNET

is an object that attracts metallic substances. It has two opposite ends, called poles.

ELECTROMAGNET

is a magnet in which the magnetic field is produced by an electric current.

STATIC ELECTRICITY

is the presence of electric charges that are stationary in an object.

 

ELECTRIC CURRENT

is the flow of electrically charged particles from a source through a circuit.

 

CIRCUIT

is the path where electric current flows.

 

CONDUCTORS

are materials that allow the passage of electrically charged particles freely.

INSULATORS

are materials that do not allow the passage of electrically charged particles.

 

Electric current produces the following:

1.     Heat

2.     Magnetic effect (magnetic field)

SERIES CIRCUIT

where current moves along a single path.

PARALLEL CIRCUIT

wherein the electric current is divided by the number of paths through which it passes.

 

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Electrical

are materials that allow the passage of electrically charged particles.

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In a

circuit, electricity moves through different paths.

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It refers to the bouncing off of light as it hits the object’s surface.

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It is produced by vibrating objects.

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It is defined as the presence of electric charges that are stationary in an object.

Multiple Choice

Electric current produces _____ and ______or magnetic field.

• Heat, magnetic effect

• Series, parallel circuit

• gravity, energy

• force, energy

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A

is an object that attracts metallic substances, has two opposite ends, called poles.

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The path where electric current flows.

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The flow of electrically charged particles from a source through a circuit.

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It is associated with the motion of the particles.

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It plays an important role in everyday life. They may be described in terms of wavelength, amplitude, and frequency.

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It is determined by the frequency of sound.

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It refers to the flow of energy from a high temperature object to a low temperature objects.

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In a

circuit, electricity passes through a single path.

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Electrical

are materials that DO NOT allow the passage of electrically charged particles.

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The bending of light due to a change in the medium it travels is called

.

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The

of a sound determines its loudness.