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Physics > Physics Unit 5 > Flashcards

Physics Unit 5 Flashcards

1
Q

A _____ is a device that stores electrical charges

A

capacitor

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2
Q

The electrical force between two charged objects is _____ than the gravitational force between them.

A

much more

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3
Q

A negatively charged object touches another object, changing its charge through _____.

A

direct contact

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4
Q

When Point A’s E.P.E. is divided by the charge expressed in ______, the ________ results.

A

coulombs, electric potential

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5
Q

The greater the _____ between two masses, the lower the gravitational force.

A

distance

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6
Q

When electrons travel from a battery’s negative post to its positive post, that is _____.

A

direct current

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7
Q

At point A, the EP refers to the ______, or the amount of energy that exists for a particular charge in an energy field. It is measured in ______.

A

electric potential, volts

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8
Q

Particles that carry negative charges and move in orbitals are _____.

A

electrons

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9
Q

A property of materials responsible for their attraction or repulsion to magnetic fields caused by moving charges is _____.

A

magnetism

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10
Q

A regular atom has a net charge of _____.

A

zero

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11
Q

An object may have _____ that protects it from electrical force but not gravitational force.

A

shielding

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12
Q

The gravitational force between two charged objects is _____ than the electrical force between them.

A

much less

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13
Q

One atom has excess electrons and another has had electrons removed, they are both termed _____.

A

ions

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14
Q

_____ current flows from positive to negative.

A

conventional

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15
Q

A slab of nickel metal transmits electrical charges from one end to another, so it is a(n) _____.

A

conductor

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16
Q

When the electric potential in a generator shifts back and forth _____ is created.

A

alternating current

17
Q

Particles that carry no charge or are neutral inside the atom’s nucleus are _____.

A

neutrons

18
Q

Electrical force can result in either attraction or _____.

A

repulsion

19
Q

More electrons than protons are on a sphere’s surface; therefore, the sphere has a(n) _____ charge

A

negative

20
Q

Metals may be become magnetized more easily that other materials because they have more _____ spinning one way than the other.

A

electrons

21
Q

SI unit for electrical charge is the _____.

A

Coulomb

22
Q

The greater the _____ between two charges, the lower the electrical force.

A

distance

23
Q

Devices that control electric circuits by restricting current flow are _____.

A

resistors

24
Q

Since point A has a higher electric potential than point B, charges flow towards _____.

A

point b

25
Q

Particles that carry positive charges inside the atom’s nucleus are _____.

A

protons

26
Q

One mass is attracted to another due to _____.

A

gravitational force

27
Q

One charge _____ the other because their charges are different.

A

attracts

28
Q

You shuffle across a rug, touch a doorknob, and receive an electrical shock due to the buildup of electrons in you skin that is called _____.

A

static electricity

29
Q

Gravitational force can only result in _____.

A

attraction

30
Q

A positively charged object is brought near another object which then becomes positively charged through _____.

A

induction

31
Q

The charges of an electron and a proton make them _____ each other.

A

attract

32
Q

The energy for the charge at a certain point in an electrical system; expressed in volts is called _____.

A

electric potential

33
Q

A circuit in which several components are in the same path is a(n) _____.

A

series

34
Q

Magnetism’s strength is related to the _____ of the distance between two magnetized objects.

A

inverse-square

35
Q

Capacitors are rated according to _____, the SI unit that is a measurement of the ability to store charge.

A

farads

36
Q

One charge is attracted to another due to _____.

A

electrical force

37
Q

In a(n) _____ circuit each component has a separate circuit.

A

parallel

38
Q

Electric force and gravitational force have _____ relationships

A

inverse-square

39
Q

Transformers only operate on _____ current.

A

alternating

Physics (5 decks)

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