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Quarks & leptons

Total questions: 13

Worksheet time: 5mins

Name
Class
Date
1.

What do we call a particle that is not made up of any smaller particles?

a)

• Atomic particle

b)

•Minimum particle

c)

•Original particle

d)

•Elementary particle

e)

•Base particle

2.

•Light is made up of what type of elementary particles?

a)

•Quarks

b)

•Leptons

c)

• Photons

d)

• Gluons

e)

•All of the above

3.

•What type of elementary particles are electrons?

a)

•Quarks

b)

•Leptons

c)

• Photons

d)

Bosons

4.

•What elementary particles are the building blocks for protons and neutrons?

a)

•Quarks

b)

• Leptons

c)

• Photons

d)

• Gluons

5.

•How many quarks make up a proton?

a)

0

b)

1

c)

2

d)

3

e)

4

6.

•What particle is made up of two 'down' quarks and one 'up' quark?

a)

•Atom

b)

• Electron

c)

• Neutron

d)

• Proton

e)

• Tachyon

7.

What are fermions?

a)

Elements with ferrous metallic properties

b)

Fundamental particles of matter

c)

Hard subatomic solids

d)

Groups of particles with the same charge or mass

8.

What are bosons?

a)

Elementary crew members on merchant vessels

b)

A term in particle physics used to describe matter

c)

Subatomic particles that carry forces

d)

An electron switch used in nano-circuits

9.

Which of the following sentences about antimatter is NOT true:

a)

Antimatter is normal matter with an opposite charge

b)

Antimatter is only produced in particle accelerators

c)

Antimatter annihilates matter

d)

Equal amounts of antimatter and matter were created during the Big Bang

10.

Often seen with the up quark, its partner in the "first generation of matter", the down quark is slightly heavier and just as fun. In terms of e (the charge of a proton), what is the electric charge of a down quark?

a)

+2/3 e

b)

-e

c)

+e

d)

-1/3 e

11.

the charge of an antitop quark is approximatelly...

a)

-1.067x10-19  C

b)

+1.067x10-19  C

c)

-2.40x10-19  C

d)

+5.33x10-20  C

12.

What fundamental force holds quarks together to form particles such as protons and neutrons?

a)

electromagnetic force

b)

gravitational force

c)

strong force

d)

weak force

13.

What is the total number of quarks in a helium nucleus consisting of 2 protons and 2 neutrons?

a)

16

b)

12

c)

8

d)

4