DEFINITION Flashcards

1
Q

TRANSVERSE PULSE

A

The displacement of particles perpendicular to the direction of movement of a pulse

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2
Q

TRANSVERSE WAVE

A

when the particles of a medium vibrates perpendicular to the direction of the motion of the wave

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3
Q

AMPLITUDE

A

A single disturbance propagated by medium

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4
Q

LONGTUDINAL WAVE

A

A wave in which the particles of a medium vibrate parallel to the direction of movement of a wave

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5
Q

REFLECTION

A

The echo of sound

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6
Q

ULTRASOUND

A

SOUNDS ABOVE THAT ARE ABOVE 20000Hz

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7
Q

PHONTON

A

Energy packets found in EM waves that transfer energy to particles of matter

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8
Q

LAW OF CONSERVATION OF CHARGE

A

The net charge of an isolated system remains constant during any physical process

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9
Q

Potential Difference

A

Energy transferred per unit charge between two points in a circuit

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10
Q

EMF

A

The amount of electrical energy transferred by the battery per unit charge

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11
Q

CURRENT

A

The rate at which electrical charge flow

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12
Q

SCALAR

A

A physical quantity that has only magnitude

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13
Q

VECTOR

A

A physical quantity that has both magnitude and direction

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14
Q

Position

A

Is the place where an object is relative to the reference point

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15
Q

REFERENCE POINT

A

A point from which the position of the object is measured

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16
Q

SPEED (MECHANICS)

A

The rate at which the distance covered changes

17
Q

VELOCITY

A

Rate of change of position of an object

18
Q

AVERAGE SPEED

A

The rate of change of the total distance

19
Q

UNIFORM SPEED

A

A body travels at a constant speed if it covers equal distances in equal time intervals

20
Q

ACCELERATION

A

Rate of change of velocity of an object

21
Q

CONSTANT ACCELERATION

A

A constant increase or decrease in velocity in equal time intervals

22
Q

INSTANTANEOUS VELOCITY

A

RATE OF CHANGE IN POSITION

23
Q

GRAVITATIONAL POTENTIAL ENERGY

A

The energy an object has due to its position within the gravitational field relative to the reference point

24
Q

MECHANICAL ENERGY

A

The sum of an object’s gravitational potential and kinetic energy at a specific position

25
Q

LAW OF CONSERVATION OF MECHANICAL ENERGY

A

The sum of gravitational potential and kinetic energy of an isolated system is a constant