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Atoms and Radiation

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

In order of most to least penetrating radiation we have________

a)

Alpha, Beta, Gamma

b)

Beta, Gamma, Alpha

c)

Gamma, Beta, Alpha

d)

Gamma, Alpha, Beta

2.

When radiation hits an atom and knocks out some electrons, the atom becomes _________

a)

ionised

b)

cancer

c)

radioactive

3.

What type(s) of radiation cannot be stopped by a piece of paper?

a)

Alpha radiation

b)

Beta and gamma radiation

c)

Alpha, beta, gamma

4.
Name the instrument used to detect radioactivity.
a)
voltmeter
b)
ohmeter
c)
seismograph
d)
geiger counter
5.

Which of these is not a safe method of handling radioactive materials?

a)

Pointing it away from yourself and others

b)

Spending as little time as possible with the radiation

c)

Picking it up with your hands and poisoning your friend's tea

d)

Storing in a lead container

6.
Negatively charged particles emitted from a nucleus at a high speed are ____.  
a)
alpha particle
b)
gamma rays
c)
beta particles
d)
X rays
7.
Positively charged particles that consist of two protons and two neutrons are called
a)
alpha particles
b)
beta particles
c)
gamma rays
d)
neutron emissions
8.

The most basic building block of all matter is __________

a)

Compound

b)

Atom

c)

Chemical

d)

Element

9.
What is the process by which nuclei emit particles and rays?
a)
Radiation
b)
Radioactivity
c)
Radioisotopes
10.

The penetrating rays and particles emitted by a radioactive source are called __________

a)

Radiation

b)

Radioactivity

c)

Radioisotopes

11.
The central region of an atom where its neutrons and protons are is called the
a)
nucleus 
b)
electron cloud
c)
core 
d)
center 
12.

The negatively charged particles of an atom are called ___________.

a)

electrons

b)

atoms

c)

neutrons

d)

protons

13.
Neutrons are _______________ particles.
a)
negative
b)
positive
c)
neutral
d)
cows
14.
The positive particles of an atom are 
a)
electrons 
b)
positrons 
c)
neutrons 
d)
protons 
15.

Gamma radiation is made up of _______

a)

electrons

b)

particles

c)

rays

d)

ions