WorksheetsProcesses of the Early Universe
Total questions: 10
Worksheet time: 6mins
What was created during the Big Bang?
atoms
matter
energy
neutrons
Which ones are subatomic particles?
molecule
neutron
proton
ion
What is the hydrogen atom made of?
electron
proton
neutron
meson
How did the first galaxies form?
by gravity contracting matter
by hydrogen fusion
by supernova explosions
by volcanic eruptions
When do we say a star is born?
when it contracts
when it has planets
when it starts shining
when hydrogen fusion starts
What is the largest element that can form in regular stars?
hydrogen
helium
iron
oxygen
How can heavy elements be created?
by hydrogen fusion
by nuclear fission
by supernova explosions
by gravitation
What percentage of the material of the Solar System makes up the planets?
98%
2%
24%
15%
Which element is the basic building block of all other ones?
proton
helium
hydrogen
neutron
What is hydrogen fusion?
two hydrogens forming a helium
a neutron couples up with a proton
contracting matter heats up
dust fusing into a star
