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Physics T 4 Gr 10 > Definitions P1 > Flashcards

Definitions P1 Flashcards

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1
Q

What is POTENTIAL DIFFERENCE? (V)

A

The energy transferred per unit charge across the ends of a conductor.

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2
Q

What is CURRENT? (I)

A

The rate of flow of electric charge. (A-Amperes)

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3
Q

What is RESISTANCE? (R)

A

The opposition to current flow measured in ohms (Ω)

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4
Q

What is a POTENTIAL DIVIDER CIRCUIT?

A

When the resistors in series are not the same.

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5
Q

What does EMF stand for?

A

Electro motor force.

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6
Q

What does EMF mean?

A
  1. maximum amount of power per coulomb charge provided by batteries
    or
  2. potential difference across a battery when there is no current flow in the circuit
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7
Q

What is TERMINAL POTENTIAL?

A

Potential difference across a battery when there is a current flow.

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8
Q

What is WORK DONE?

A

The energy transferred.

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9
Q

What is KINETIC ENERGY?

A

The energy of motion.

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10
Q

What is GRAVITATIONAL POTENTIAL ENERGY?

A

Energy as a result of position above earths surface.

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11
Q

What is THE LAW OF CONSERVATION OF MECHANICAL ENERGY?

A

In an isolated system (no external force), the total mechanical energy remains constant

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12
Q

What is a PULSE?

A

A single disturbance that is propagated by a medium.

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13
Q

What is AMPLITUDE?

A

Maximum displacement from rest position. (A)

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14
Q

What is a TRANSVERSE PULSE?

A

The distance is perpendicular ti the direction of motion.

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15
Q

What is a LONGITUDINAL PULSE?

A

The disturbance is parallel to the direction of motion.

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16
Q

What is a INTERFERENCE?

A

When two pulses in the same medium meet and interact with each other.

17
Q

What is a CONSTRUCTIVE INTERFERENCE?

A

Two pulses in phase.

18
Q

What is a DESTRUCTIVE INTERFERENCE?

A

Two pulses out of phase.

19
Q

What are WAVES?

A

A repetition of pulses.

20
Q

What is WAVELENGTH?

A

The distance between two consecutive points that are in phase.

21
Q

What is FREQUENCY?

A

The number of waves or complete oscillations per second.

22
Q

Define FREE FALL

A

The movement of an object when the only force is gravity.

23
Q

What is VELOCITY?

A

The rate of change in displacement.

24
Q

What is ACCELERATION?

A

The rate of change in velocity.

25
Q

What is DISPLACEMENT?

A

The change in the position of an object represented by a line drawn from its starting to its ending point.

26
Q

What is SPEED?

A

the displacement of an object divided by the time the journey took.

27
Q

What is OHMS LAW?

A

The potential difference across a conductor is directly proportional to the current through it, at a constant temperature.

28
Q

What is POWER?

A

The rate at which work is done or energy is transferred.

29
Q

What is **QUANTISATION OF CHARGE **?

A

All charges in the universe consist of an integer multiple of the charge of one electron.

30
Q

What is FREQUENCY?

A

the number of waves or complete oscillations per second.

31
Q

What is SPEED

A

the displacement of an object divided by the time the journey took

Physics T 4 Gr 10 (5 decks)

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