Physics

What charge does a proton have?

• Positive

• Negative

• Neutral

Describe what is meant by the term ionisation.

• Removal of an electron from an atom

• Removal of an electron from an atom to form an ion

• Removal of a neutron from an atom

• Removal of a proton from an atom to form an ion

What type of particles can be absorbed by a thin piece of paper?

• gamma

• beta

• alpha

• xray

What type of waves can only be absorbed by a few centimetres of lead?

• Alpha

• Gamma

• Sound

• Beta

Draw the formula triangle to calculate becquerels.

How would you calculate activity?

• t x N

• t divided by N

• N divided by t

Draw the formula triangle to calculate D E and m

What is the calculation for absorbed dose?

Equivalent dose is represented by which letter in a formula?

• J

• H

• E

What unit is equivalent dose measured in?

• becquerels (Bq).

• joules (J)

• sieverts (Sv)