8th II Quiz 1

Which is associated with the expansion of the Universe?

• dark matter

• dark energy

• atomic matter

• quarks

Which type of matter is more abundant?

• atoms

• molecules

• dark matter

• energy

Which is NOT made from quarks?

• protons

• neutrons

• electrons

Which are subatomic particles without charge?

• neutrons

• protons

• electrons

Which is the most simple and abundant element?

• hydrogen

• helium

• quarks

• atom

How many protons do hydrogen atoms have?

• 0

• 1

• 2

• 3

Hydrogen can only have one neutron.

• True

• False

Which force keeps the particles in the nucleus together?

• electromagnetism

• strong nuclear force

• gravity

Which force attracts or repels charged particles?

• electromagnetism

• strong nuclear force

• gravity

Which force pulls together hydrogen atoms into forming massive nebulae?

• electromagnetism

• strong nuclear force

• gravity