AA Natural Sciences 3

Question 1

What is the speed of light in a vacuum?

Accepted Answer

3 × 10⁸ m/s

Answer

3 × 10⁶ m/s

Answer

1.5 × 10⁸ m/s

Answer

6 × 10⁸ m/s

Question 2

What is the process by which water vapor turns into liquid water called?

Accepted Answer

Condensation

Answer

Evaporation

Answer

Precipitation

Answer

Sublimation

Question 3

Which part of the brain controls balance and coordination?

Accepted Answer

Cerebellum

Answer

Cerebrum

Answer

Medulla oblongata

Answer

Hippocampus

Question 4

What type of bond involves the sharing of electrons between atoms?

Accepted Answer

Covalent bond

Answer

Ionic bond

Answer

Hydrogen bond

Answer

Metallic bond

Question 5

Which layer of Earth is the thickest?

Accepted Answer

Mantle

Answer

Crust

Answer

Outer core

Answer

Inner core

Question 6

What is the term for the minimum energy required to start a chemical reaction?

Accepted Answer

Activation energy

Answer

Potential energy

Answer

Kinetic energy

Answer

Thermal energy