Unity Review and Assessment 3

Question 1

Which method should physics calculations be placed in?

Accepted Answer

FixedUpdate()

Answer

FixedUpdate runs on a fixed timestep, matching the physics engine.

Question 2

What is the purpose of a Tag in Unity?

Accepted Answer

To identify and categorize GameObjects

Answer

Tags let you label GameObjects so scripts can find or compare them easily.

Question 3

Which collision callback fires when two non-trigger colliders begin touching?

Accepted Answer

OnCollisionEnter

Answer

OnCollisionEnter is called when colliders with at least one Rigidbody start colliding.

Question 4

What does serializing a private field with [SerializeField] accomplish?

Accepted Answer

Exposes it in the Inspector while keeping it private

Answer

[SerializeField] shows a private field in the Inspector without exposing it publicly in code.

Question 5

Which file format does Unity use to store scenes?

Accepted Answer

.unity

Answer

Scene files use the .unity extension.

Unity Practice Test