Physics

Particle Interactions & Conservation — Multiple-Choice Questions (Edexcel IAL Physics): Exam Questions

Exam code:YPH11

7 questions · 7 marks · ≈ 7 min

Guided practice

11 markeasy

Which of the following is a fundamental particle?

Choose your answer

atom

baryon

neutrino

pion

21 markeasy

Which of the following is a fundamental particle?

Choose your answer

antiproton

muon

neutron

pion

31 markeasy

In 2015, a pentaquark was discovered.

The pentaquark was made of 5 quarks, $c,\overline{c},d,u,u.$

The pentaquark can form a baryon-meson combination.

Which row of the table shows a possible arrangement of the quarks?

	Quarks in baryon	Quarks in meson
A	$duu$	$c\overline{c}$
B	$u\overline{c}u$	$dc$
C	$\overline{c}u$	$duc$
D	$ud$	$c\overline{c}u$

Choose your answer

41 markeasy

The $Λ^{0}$ baryon has the quark content $\text{uds}$ (one up, one down, one strange).

The table shows four possible sets of values for the charge, baryon number and strangeness of the $Λ^{0}$ .

Which row shows the correct values?

Row	Charge / $e$	Baryon number	Strangeness
A	$0$	$+ 1$	$+ 1$
B	$0$	$+ 1$	$- 1$
C	$+ 1$	$+ 1$	$- 1$
D	$0$	$- 1$	$- 1$

Choose your answer

51 markmedium

Which of the following is the quark structure for a $π^{-}$ particle?

Choose your answer

$ddd$

$\overline{uud}$

$\overline{u}d$

$ud$

61 markmedium

Which row in the table gives the charge and mass of an antiproton?

	Charge / C	Mass / kg
A	1.6 × 10⁻¹⁹	−9.11 × 10⁻³¹
B	–1.6 × 10⁻¹⁹	9.11 × 10⁻³¹
C	1.6 × 10⁻¹⁹	−1.67 × 10⁻²⁷
D	–1.6 × 10⁻¹⁹	1.67 × 10⁻²⁷

Choose your answer

71 markmedium

Neutrinos can interact with protons to create neutrons.

Which of the following equations shows this process?

Choose your answer

$ν_{e}+p\rightarrow e^{+}+n$

$ν_{e}+p\rightarrow e^{--}+n$

$\overline{ν}_{e}+p\rightarrow e^{+}+n$

$\overline{ν}_{e}+p\rightarrow e^{--}+n$

Quarks in baryon

Quarks in meson

duu

c\overline{c}

u\overline{c}u

dc

\overline{c}u

duc

ud

c\overline{c}u

Row

Charge /

e

Baryon number

Strangeness

0

+ 1

+ 1

0

+ 1

- 1

+ 1

+ 1

- 1

0

- 1

- 1

Charge / C

Mass / kg

1.6 × 10⁻¹⁹

−9.11 × 10⁻³¹

–1.6 × 10⁻¹⁹

9.11 × 10⁻³¹

1.6 × 10⁻¹⁹

−1.67 × 10⁻²⁷

–1.6 × 10⁻¹⁹

1.67 × 10⁻²⁷