AQA A-Level Physics 3.2 Particles and radiation overview quiz quiz

$1$ (about equal)

$1840$

$\frac{1}{1840}$

$\frac{1}{1840000}$

From $0 \text{ fm}$ up to about $0.5 \text{ fm}$ only

From about $3 \text{ fm}$ out to about $10 \text{ fm}$

At every separation, no matter how large

From about $0.5 \text{ fm}$ to about $3 \text{ fm}$

An electron antineutrino

An electron neutrino

A positron and a photon

A high energy gamma photon

To conserve charge

To conserve momentum

To conserve strangeness

Because photons always travel in pairs

The virtual photon

The pion

The W boson

The gluon

Leptons feel the strong force; hadrons do not

Both feel the strong force equally

Neither feels the strong force

Hadrons feel the strong force; leptons do not

udd

uud

uds

$\text{u}\overline{\text{d}}$

Charge

Strangeness

Baryon number

Lepton number

Electrons are emitted slowly

Electrons are emitted only if the light is very intense

No electrons are emitted, however intense the light

The work function decreases

$4.9 \text{ eV}$

$1.5 \text{ eV}$

$3.4 \text{ eV}$

$1.9 \text{ eV}$

All moving particles have an associated wavelength that depends on momentum

Only photons and other massless particles have an associated wavelength at all

The wavelength of a particle increases as its momentum increases

The mass of a particle has no effect at all on its associated wavelength

The photoelectric effect

Electron diffraction

Alpha decay

Line spectra