Practice Test

Question 1

What error did Mimi make?

Revolt · Accepted Answer

No change in mass number occurs in beta minus decay.

Question 2

Seven-eighths of a sample of hydrogen-3 will have become a stable isotope after 36 point 9 years. What is the half-life of hydrogen-3?

Revolt · Accepted Answer

12 point 3 years

Question 3

What occurs as energy is transferred through the radiative zone of the Sun? Choose two correct answers.

Revolt · Accepted Answer

Photons are scattered in many directions.; Photons are absorbed and reemitted.

Question 4

Which applications, either for diagnostic purposes or for therapeutic purposes, involve the use of X-rays? Choose four correct answers.

Revolt · Accepted Answer

CT scan; fluoroscopy; external beam radiation therapy; radiography

Question 5

Which are most likely to be used during a routine visit to the dentist?

Revolt · Accepted Answer

ultrasound and X-rays

Question 6

Which labels belong in the regions marked X, Y, and Z?

Revolt · Accepted Answer

X: A larger nucleus forms Y: Large amounts of energy are released Z: Smaller nuclei form

Question 7

What is the best placement of the labels?

Revolt · Accepted Answer

Label 1 in region W. Label 2 in region Y. Label 3 in region Z.

Question 8

Which labels belong in the areas marked X, Y, and Z?

Revolt · Accepted Answer

X: Very small range Y: Attractive or repulsive Z: Infinite range

Practice Test Answers