Radioactivity progress quiz

Read the question carefully and select the correct answer. You have 30 seconds and can use the back of your book for working.

• A
• B
• C
• D

Read the question carefully and select the correct answer. You have 30 seconds and can use the back of your book for working.

• A
• B
• C
• D

Read the question carefully and select the correct answer. You have 30 seconds and can use the back of your book for working.

• A
• B
• C
• D

Read the question carefully and select the correct answer. You have 30 seconds and can use the back of your book for working.

• A
• B
• C
• D

Read the question carefully and select the correct answer. You have 30 seconds and can use the back of your book for working.

• A
• B
• C
• D

Read the question carefully and select the correct answer. You have 30 seconds and can use the back of your book for working.

• A
• B
• C
• D

Read the question carefully and select the correct answer. You have 30 seconds and can use the back of your book for working.

• A
• B
• C
• D

Which safety procedures will reduce risk by maximising distance when using this type of source?

• read local rules about the use of radioactive sources

• use tongs / tweezers / handling tool

• remove source from lab / room when not in use

• stand behind a lead absorber / screen

Which safety procedures will reduce risk by shielding effectively when using this type of source?

• read local rules about the use of radioactive sources

• use tongs / tweezers / handling tool

• remove source from lab / room when not in use

• stand behind a lead absorber / screen

State two possible reasons why the results to detect the counts from a radioactive source using a G-M radiation detector might not follow the expected inverse-square law

• The detector captures less radiation as it moves away from the source

• Human error - the readings were copied wrongly

• d is not the real distance between source and detector

• The source may not be a pure gamma emitter