LESSON QUIZIZZ 8.2 8.3 8.4 RADIOACTIVE

LESSON QUIZIZZ

8.2 ATOM AND NUCLEUS

8.3 IONISING AND NON IONISING RADIATION

8.4 USES OF RADIOACTIVE

Multiple Choice

RECALL 1: Unstable nucleus in an atom could decay and releases radiation is known as .........................

• radioisotope

• radioactivity

• electromagnetism

• kinetic energy

Multiple Choice

RECALL 2: Atom is the smallest particle of an object and cannot be further divided.

• TRUE

• FALSE

Multiple Select

RECALL 3: What are the sub-atoms found in the nucleus?

• Proton

• Neutron

• Electron

• Orbit

Multiple Choice

When the number of protons is equal to the number of electrons, the atom is said to be ...............

• neutral

• negatively charged

• positively charged

Multiple Choice

When an atom gains or loses electron, it will become an ...............

• acid

• ion

• alkali

• uncharged particles

Multiple Select

When an atom loses electron, it becomes ...................

• positive ion

• negative ion

• anion

• cation

Multiple Select

When an atom gains electron, it becomes ...................

• positive ion

• negative ion

• anion

• cation

Multiple Choice

Sodium loses one electron. What sodium has become?

• Sodium (Na)

• Sodium ion (Na⁺)

• Sodium ion (Na^-)

• Sodium (Na¹⁺)

Multiple Choice

Oxygen atom received two electrons from the carbon atom. What Oxygen has become?

• Oxide (O^2-)

• Oxygen

• Oxide (O²⁺)

• Oxygen (O^2-)

Multiple Choice

Radiation that has less energised electromagnet rays that cannot ionise atom or molecule.

• Ionising radiation

• Non-ionising radiation

Multiple Choice

Is the electromagnet rays that has enough energy to ionise atom or molecules

• Ionising radiation

• Non-ionising radiation

Multiple Select

Which of the following are examples of non-ionising radiation?

• Wifi

• Radio wave

• Airport scanner

• Ultraviolet rays (UV)

• Alpha rays

Multiple Select

Which of the following are examples of ionising radiation?

• Microwave

• Alpha rays

• 5G

• Beta rays

• Gamma rays

Multiple Select

Which of the following are examples of natural ionising radiation?

• Cosmic rays

• Background radiation

• Nuclear accident or test

• Use of radiosotopes in medicine

Multiple Choice

A form of high-energy radiation, mainly originating outside the Solar System

• Ultraviolet rays

• Cosmic rays

• Gamma radiation

• Radio

Multiple Choice

Why do airliners have the highest exposure to radiation compared to workers in nuclear reactor?

• The closest to cosmic rays

• Exposed to solar radiation

• Exposed to UV rays

Multiple Select

Why do living organisms not exposed to cosmic rays on the earth?

• It becomes showers of secondary particles

• Only sometimes reach the surface of the earth

• It could penetrate the atmosphere

Multiple Choice

Various types of ionising radiation in the ENVIRONMENT.

• Solar radiation

• Background radiation

• Nuclear radiation

Multiple Select

Which of the following are examples of BACKGROUND RADIATION?

• Cosmic rays

• Radioisotopes

• Nuclear radiation

• Infrared

• Radio

Multiple Choice

Different type of similar atom that has unstable nucleus and releases ionising radiation when decayed is known as ........................................

• radioisotopes

• isotopes

• carbon 14

• radiactive substance

Multiple Choice

The radioisotope is commonly used in ..........................

• engineering

• medicine

• power plant

• geology

Multiple Choice

THE BIOLOGICAL EFFECT FROM IONISING RADIATION ON THE HUMAN BODY IS MEASURED IN A QUANTITY KNOWN AS ....................

• JOULE

• BECQUEREL

• WATT

• DOSE

Multiple Choice

1 JOULE OF IONISING RADIATION ENERGY THAT IS ABSORBED BY 1 KG OF LIVING TISSUE IS EQUAL TO ........................

• Work done

• A dose of 1 sievert

• Power

• Dosage

Multiple Choice

What is the SI unit for the radioactive dose?

• MicroSievert per hour (µSv/h)

• Sievert per hour (Sv/h)

• Joule per hour (J/h)

• Watt (W)

Multiple Choice

Which of the following has the highest dose of radiation?

• CT scan

• Chest X-ray

• Eating a banana

• Nuclear reactor

Multiple Choice

What is the maximum dose human can be exposed to radiation?

• 1.0 µSv/h

• 0.2 µSv/h

• 0.1 µSv/h

• 0.5 µSv/h

Multiple Choice

Radioisotope that is used to generate electricity.

• Cobalt-60

• Plutonium

• Uranium

• Carbon-14

Multiple Choice

Radioisotope that is used to make a bomb

• Cobalt-60

• Plutonium

• Uranium

• Carbon-14

Multiple Choice

Radioisotope that is used to kill cancer cells.

• Cobalt-60

• Plutonium

• Uranium

• Carbon-14

Multiple Choice

Radioisotope that is used to kill cancer cells.

• Cobalt-60

• Plutonium

• Uranium

• Carbon-14

Multiple Choice

Radioisotope that is used to detect the state of thyroid gland in human?

• Cobalt-60

• Iodine-131

• Uranium

• Carbon-14

Multiple Choice

Radioisotope that is used to determine the age of ancient artifacts

• Cobalt-60

• Iodine-131

• Uranium

• Carbon-14

Multiple Choice

Radioisotope that is used to investigate the effectiveness of fertiliser absorption in agriculture.

• Cobalt-60

• Iodine-131

• Phosphorus-32

• Carbon-14

Multiple Choice

What can be used to detect the thickness of metal in the industry?

• Alfa radiation

• Gamma radiation

• Beta radiation

Multiple Select

What are the short-term risks if you are exposed to ionising radiation?

• Nausea and vomiting

• Hair loss

• Loss of appertite

• Leukaemia

• Birth defects

Multiple Select

What are the common long-term risks if you are exposed to ionising radiation?

• Nausea and vomiting

• Birth defects

• Loss of appertite

• Leukaemia

• Cancer

Multiple Select

Which of the following are the safest ways to manage radioactive substances?

• Stored in thick lead containers

• Surrounded by very thick concrete

• Dumps the radioactive waste far away in the forest

• Radioactive waste is dumped in the deep ocean

• Placed in tunnels and subsequently sealed with rocks and clay

Poll

CONGRATULATIONS!!! YOU HAVE COMPLETED THE LESSON ABOUT RADIOACTIVITY. WHAT IS YOUR UNDERSTANDING?

• Excellent

• Good

• Need to repeat

• Need more teacher guidance