Unity Review and Assessment 2

Question 1

Which Unity component is required for a GameObject to be visible in the scene?

Accepted Answer

MeshRenderer

Answer

A MeshRenderer (or other renderer) is what draws the mesh on screen.

Question 2

What does the Time.deltaTime variable represent?

Accepted Answer

Time since the last frame

Answer

Time.deltaTime is the seconds elapsed since the previous frame, used for frame-independent movement.

Question 3

Which method is called once before the first frame update?

Accepted Answer

Start()

Answer

Start() runs once on the frame before the first Update, after Awake.

Question 4

What is a Prefab in Unity?

Accepted Answer

A reusable GameObject template asset

Answer

A Prefab is a saved, reusable GameObject template you can instantiate many times.

Question 5

Which window shows the hierarchy of GameObjects in the current scene?

Accepted Answer

Hierarchy

Answer

The Hierarchy window lists all GameObjects in the active scene and their parent-child relationships.

Unity Practice Test