Physics 2 Flashcards

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0
Q

If object has gained electrons it is a what charge?

A

Negatively charged

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1
Q

Static electricity is

A

The buildup of charge on a surface as a result of gaining or loosing electrons through friction with another surface

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2
Q

If object has lost electrons it is a what charge?

A

Positively charged

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3
Q

Static situations

A

Hair sticking on brush
Electric shock
Escalator

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4
Q

Law or charges States that

A

Opposite charges attract

Likes charges repel

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5
Q

Static electricity is produced by

A

Friction between two different materials

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6
Q

Electrostatic. Induction

A

Temporary buildup of charge on a neutral object due to the presence of a charged object

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7
Q

Explain why spray painting with a charged object is better to use?

A

The charged object will induce a charge on the paint droplets and the object will attract the paint making it unwasted

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8
Q

What do current electricity need?

A

Voltage source
Complete circuit made by conducting materials
A load

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9
Q

Current electricity

A

Where charged flow along a path

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10
Q

Conductors examples

A

Copper
Aluminium
Graphite
Iron

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11
Q

Insulator

A

Glass
Plastic
Wood
Rubber

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12
Q

Voltage is ? EMF

A

A measure of the amount of energy available to push charges around a circuit.

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13
Q

Potential difference

A

Measure of how much energy is transferred or used by a load

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14
Q

Voltage in parallel

A

The voltage is the same across all branches

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15
Q

Series in voltage

A

The voltage is shared

16
Q

Parallel current

A

The current splits at each branch and thy add up to the total current

17
Q

Current series

A

Current is the same everywhere