WorksheetsCIE 5.2 Radioactivity
Total questions: 30
Worksheet time: 15mins
What is the mass number of this isotope?
131
53
184
78
An alpha particle is made up of
2 protons and 4 neutrons
1 proton and 1 neutron
2 protons and 2 neutrons
4 protons and 2 neutrons
Which type of nuclear radiation can be stopped by a sheet of paper?
Alpha
Beta
Gamma
Which type of nuclear radiation can be stopped 60 cm of aluminum or 7 cm of lead?
Alpha
Beta
Gamma
When a substance undergoes beta decay
The atomic number increases by 1
The atomic number decreases by 2
The atomic number does not change
Which of these is the most suitable description of background radiation
a measure of the level of ionizing radiation present in the environment at a particular location
a measure of how much radiation you absorb
a measure of radiation that comes from space only
a measure of radiation that comes from the buildings
Which gas is the most common source of background radiation
Radium
Radio
Radon
Rubidium
A student measures the background count three times and gets these readings 20, 23 and 26 counts per second. Which of these is the correct average count?
3
22
23
51
After Radon, which of these is the biggest source of background radiation?
Buildings and ground
Nuclear power stations
Water
The sun
Radioisotopes do NOT occur naturally.
True
False
Which of these is the most suitable description of background radiation?
A measure of the level of ionising radiation present in the environment at a particular location
A measure of how much radiation you absorb
A measure of radiation that comes from space only
A measure of radiation that comes from the buildings
What is the most common source of background radiation?
Radium
Nuclear waste
Radon
Cosmic rays
Which of these best describes why radon is a dangerous radioactive gas?
It emits alpha and it can be breathed in and out
It emits alpha and it can be breathed in and can ionise cells
It emits beta and it can be breathed in and can ionise cells
It can be breathed in and it can go the the brain
All background radiation comes from natural sources.
True
False
Why is the background radiation from cosmic rays relatively low for most people?
Our clothes protect us.
The atmosphere absorbs a lot of cosmic rays.
We are too far from the Sun.
Satellites reflect them back into space.
This type of electromagnetic wave has the most energy and therefore can be very dangerous.
Microwaves
Radio Waves
X Rays
Gamma Rays
This is the name for the type of radiation that naturally occurs in the environment and is generally safe.
background radiation
environmental radiation
ionizing radiation
acceptable radiation
Ionizing radiation has the ability to cause biological damage to our tissues. True or False
True
False
The diagram shows the paths of three different types of radiation, X, Y and Z.
Which row in the table correctly identifies X, Y and Z?
Y is α-particles,Z is β-particles,X is γ-rays
Z is α-particles,Y is β-particles,X is γ-rays
Y is α-particles,X is β-particles,Z is γ-rays
X is α-particles,Z is β-particles,Y is γ-rays
