Grade 11 Physical Science Exam

Which of the following is the most accepted theory about the formation of the universe that explains why it continues to expand?

• big bang theory

• divine creation theory

• oscillating theory

• steady state theory

When three helium atoms combine through fusion, what is the resulting element?

• Argon

• Carbon

• Chlorine

• Oxygen

When radium-226 undergoes alpha decay, what element is formed?

• argon-40

• lead-206

• polonium-218

• radon-222

What element will be formed when potassium-40 undergoes Electron capture?

• argon-40

• lead-206

• polonium-218

• radon-222

What does Uranium-238 emit when it decays into Thorium-234?

• alpha particle

• beta particle

• gamma rays

• visible light

Which statement correctly describes nucleosynthesis?

• It is the division of atomic particle

• The combination of elements to form compound

• It is the creation of everything including all matter in universe

• It is the process of creating new atomic nuclei from pre-existing nuclei

Mrs. Carrie experiences feelings of anxiety or panic when she is unable to access her phone or mobile network. Based on the scenario, which of the following behaviors is exhibited by Mrs. Carrie?

• Aerophobia

• Claustrophobia

• hydrophobia

• nomophobia

What do you called to the first star formed after the big bang event?

• GN-z11

• Population III

• Population II

• Population I

What factor determines the polarity of a bond?

• The number of the molecule

• The size of the atoms in the bond

• The number of lone pairs on the atoms in the bond.

• The electronegativity difference between the atoms in the bond.

What do you called to the first galaxy formed after the big bang event?

• GN-z11

• Population III

• Population II

• Population I