radioactivity

radioactivity

P7 revision

Multiple Choice

what do you find in the nucleus of an atom

• Electrons and Protons

• Protons and Neutrons

• Neutrons and Electrons

• none of these

Multiple Choice

What process occurs in the Sun?

• Nuclear Fusion

• Nuclear Fission

• Radioactive decay

• Combustion

Multiple Choice

what is half life?

• How many years it takes to half

• Half the number of the unstable atoms

• How many decays happen per second

• The time taken for half the unstable nuclei to decay

Multiple Choice

Define the term isotope

• an atom with the same number of protons but different numbers of electrons

• an atom with the same number of neutrons but different numbers of electrons

• an atom with the same number of protons but different numbers of neutrons

• an atom with the same number of electrons but different numbers of protons

Multiple Select

where do radioactive emissions come from (pick two)

• unstable nuclei

• the nucleus

• the electrons

• elements on the periodic table

Multiple Select

which two isotopes can be used as potential fuel sources for nuclear fission?

• Plutonium

• Carbon-14

• Bismuth

• Uranium

Multiple Choice

what are the three types of radioactive emission?

• Alpha, Beta, Gamma

• Alpha, Beta, Delta

• Beta, Gamma, Omega

• Gamma, Alpha, Kappa

Multiple Choice

An alpha particle is made of....

• Two Protons and two Electrons

• Three Protons and three Neutrons

• Three Neutrons and three Electrons

• Two Protons and two Neutrons

Multiple Choice

Which emission has the least ionising ability?

• Alpha

• Beta

• Gamma

• Neutron

Multiple Choice

What substance blocks beta particles?

• A sheet of Paper

• A few centimetres of air

• A few centimetres of Aluminium

• A centimetre of plastic

Multiple Choice

What change occurs for beta emission?

• A proton changes into a neutron in the nucleus and emits an electron

• A neutron changes into a protron in the nucleus and emits an electron

• A neutron changes into an electron in the nucleus and emits an protron

• A neutron changes into a protron in the nucleus and emits a gamma ray

Multiple Choice

calculate the half life if 12g of californium-237 reduces to 1.5g in 6 seconds

• 6 seconds

• 3 seconds

• 2 seconds

• 237 seconds

Multiple Select

what are the benefits of using nuclear fission as an energy resource? (pick two)

• Nuclear fuel has a much higher energy density than fossil fuels

• Radioactive waste is produced

• The decays produce no carbon dioxide

• Nuclear fuel is non-renewable

Multiple Select

How can you become contaminated by a radioactive source?

• If you stand in front of a gamma source in Mr Mann's lab

• If you eat a radioactive source

• If you walk next to an MRI scanner

• If you inject a radioactive source

Multiple Choice

what do you find in the nucleus of an atom

• Electrons and Protons

• Protons and Neutrons

• Neutrons and Electrons

• none of these