AzM2 Science Assessment 2

Question 1

Which type of rock is formed when molten magma cools and solidifies?

Accepted Answer

Igneous rock

Answer

Igneous rock forms when magma (underground) or lava (surface) cools and solidifies. Examples include granite and basalt.

Question 2

What is the function of the mitochondria in a cell?

Accepted Answer

To provide energy by converting food into ATP

Answer

Mitochondria are the 'powerhouses of the cell' — they produce ATP (adenosine triphosphate) through cellular respiration, providing energy for cell functions.

Question 3

An object has a mass of 50 kg and accelerates at 2 m/s². According to Newton's Second Law (F = ma), what is the force applied?

Accepted Answer

100 N

Answer

F = ma = 50 kg × 2 m/s² = 100 N.

Question 4

Fossils are most commonly found in which type of rock?

Accepted Answer

Sedimentary rock

Answer

Fossils form in sedimentary rock because organisms become buried under layers of sediment that slowly compress and harden over time.

Question 5

Which of the following describes a food CHAIN (not a food web)?

Accepted Answer

A single pathway of energy transfer from one organism to the next

Answer

A food chain shows a single, linear sequence of energy transfer (e.g., grass → grasshopper → frog → hawk). A food web shows all interconnected chains.

AzM2 Practice Test

AzM2 Practice Test

AzM2 Science Assessment 2