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A/s Level Physics > Particle Physics > Flashcards

Particle Physics Flashcards

1
Q

Define Isotope

A

An atom with the same number of protons and different number of neutrons

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2
Q

What is the charge on an electron?

A

-1.6 x 10-19 C

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3
Q

What is the charge on a proton?

A

+1.6 x 10-19 C

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4
Q

How do you find specific charge?

A

charge (in C) / mass (kg)

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5
Q

What are the units for specific charge?

A

C/kg

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6
Q

Below what distance is the strong force repulsive?

A

0.5 fm

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7
Q

Between what values is the strong force attractive

A

0.5 fm to 3-4 fm

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8
Q

What family of particles experience the strong force?

A

Hadrons (or Quarks)

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9
Q

What does an alpha particle consist of?

A

2 protons and 2 neutrons

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10
Q

What is a beta - particle?

A

A high speed electron

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11
Q

What is a beta + particle?

A

A high speed positron

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12
Q

What is the wave speed equation?

A

c = fλ

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13
Q

How do you calculate the energy of a photon?

A

E = hf

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14
Q

How do you calculate the energy of a photon if you only know it’s wavelength?

A

E = hc/λ

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15
Q

What is the exchange particle for Gravity

(BB)

A

Graviton

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16
Q

What is the Exchange particle for the electromagnetic force?

(BB)

A

The Virtual Photon

17
Q

What are the exchange particles for the Weak force?

(BB)

A

W+ W- and W0 Bosons

18
Q

What are the exchange particles for the Strong force?

(BB)

A

The Gluon and and Pion

19
Q

What is the effect of the Strong force? (TG)

A

Hadrons

20
Q

What is the effect of the Weak nuclear force? (TG)

A

Radioactive decay

21
Q

What is the effect of the Electromagnetic force? (TG)

A

Charged Particles

22
Q

What is the effect of Gravity? (TG)

A

Anything with momentum

A/s Level Physics (5 decks)

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