Lesson 3.2.1.6
3.2.1.6 Quarks and antiquarks Quiz: AQA Physics, Unit 2
20 questions
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Lesson 3.2.1.6, Quarks and antiquarks: 20 multiple choice questions for the AQA Physics (7408), Unit 2: Particles and radiation, written with Revision Ninja.
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The 20 questions
-
What is the charge of a strange quark?
- -1/3 e
- +1/3 e
- +2/3 e
- -2/3 e
-
What is the strangeness of a strange quark?
- -2
- 0
- -1
- +1
-
What is the baryon number of a quark?
- 1
- -1/3
- 1/3
- 0
-
What is the charge of an anti-up quark?
- -2/3 e
- -1/3 e
- +2/3 e
- +1/3 e
-
What is the quark combination of a proton?
- uud
- udd
- ddd
- uuu
-
What is the quark combination of a neutron?
- uud
- uus
- dds
- udd
-
What is the quark combination of an antiproton?
- d-bar d-bar u-bar
- u-bar u-bar d-bar
- u u d
- u d-bar d-bar
-
What is the quark combination of a pi+ meson?
- u s-bar
- u u-bar
- u d-bar
- d d-bar
-
What is the quark combination of a K+ meson?
- u d-bar
- s s-bar
- u s-bar
- d s-bar
-
In beta-minus decay of a neutron, which quark change occurs?
- a down quark becomes an up quark
- an up quark becomes a down quark
- a down quark becomes an antiquark
- a strange quark becomes an up quark
-
What is the total charge of a proton from its quark content?
- +1 e
- -1 e
- +2/3 e
- 0
-
What is the baryon number of a pi meson?
- 2/3
- 0
- 1
- -1
-
What is the strangeness of a K+ meson (u s-bar)?
- 0
- +1
- +2
- -1
-
What is the quark combination of an antineutron?
- u-bar d-bar d-bar
- d d u
- u u d
- u-bar u-bar d-bar
-
Which combination of quarks has total charge zero and strangeness -2?
- u s s
- u u s
- u s d
- d s s
-
What is the charge and strangeness of a particle made of quarks u s s?
- 0 and -1
- +1 and -2
- 0 and -2
- -1 and -1
-
Which quark combination has charge +1 and baryon number 1 but is not a proton?
- u u s
- u d d
- u d s
- u u d
-
Which quark combination is a pi- meson?
- d d-bar
- u-bar u-bar d
- d u-bar
- u d-bar
-
What is the strangeness of a particle made of quarks u d s?
- -2
- +1
- -1
- 0
-
Which quark combination has charge zero and baryon number 1 without any strange quark?
- u u s
- u u d
- u d d
- d d d
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