Unity Unity 2

Question 1

Which Unity callback runs once per frame and is best for non-physics movement?

Accepted Answer

Update()

Answer

Update() is called once per frame and is the standard place for frame-based logic and input.

Question 2

What does Time.deltaTime represent?

Accepted Answer

Seconds since the last frame

Answer

Time.deltaTime is the time in seconds it took to complete the last frame, used to make movement frame-rate independent.

Question 3

Which component is required for a GameObject to be affected by Unity's physics gravity?

Accepted Answer

Rigidbody

Answer

A Rigidbody component allows a GameObject to be controlled by the physics engine, including gravity.

Question 4

What is the purpose of a Prefab in Unity?

Accepted Answer

A reusable GameObject template stored as an asset

Answer

A Prefab is a reusable asset that stores a GameObject with its components and properties for instantiation.

Question 5

Which method instantiates a copy of an object at runtime?

Accepted Answer

Instantiate()

Answer

Instantiate() creates a copy of a GameObject or Prefab during play.

Unity Practice Test