Rigidbody2D component in Unity - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to add a Rigidbody2D component to the GameObject.

Unity

gameObject.AddComponent<[1]>();

Drag options to blanks, or click blank then click option'

ATransform

BCollider2D

CRigidbody2D

DSpriteRenderer

Attempts:

3 left

💡 Hint

Common Mistakes

Using Collider2D instead of Rigidbody2D.

Trying to add Transform component which already exists.

The Rigidbody2D component is added to enable 2D physics on the GameObject.

2fill in blank

medium

Complete the code to set the Rigidbody2D's gravity scale to zero.

Unity

Rigidbody2D rb = GetComponent<Rigidbody2D>();
rb.[1] = 0f;

Drag options to blanks, or click blank then click option'

AgravityScale

Bmass

Cdrag

DangularVelocity

Attempts:

3 left

💡 Hint

Common Mistakes

Setting mass instead of gravityScale.

Using drag property which affects resistance, not gravity.

The gravityScale property controls how much gravity affects the Rigidbody2D.

3fill in blank

hard

Fix the error in the code to apply a force to the Rigidbody2D.

Unity

Rigidbody2D rb = GetComponent<Rigidbody2D>();
rb.AddForce([1]);

Drag options to blanks, or click blank then click option'

Anew Vector3(10, 0, 0)

Bnew Vector2(10, 0)

Cnew Vector4(10, 0, 0, 0)

Dnew Vector(10, 0)

Attempts:

3 left

💡 Hint

Common Mistakes

Using Vector3 or Vector4 which are for 3D or 4D vectors.

Trying to use Vector which does not exist.

The AddForce method for Rigidbody2D requires a Vector2 argument representing force in 2D space.

4fill in blank

hard

Fill both blanks to create a Rigidbody2D and set its body type to Kinematic.

Unity

Rigidbody2D rb = gameObject.AddComponent<[1]>();
rb.[2] = RigidbodyType2D.Kinematic;

Drag options to blanks, or click blank then click option'

ARigidbody2D

BCollider2D

CbodyType

DgravityScale

Attempts:

3 left

💡 Hint

Common Mistakes

Using Collider2D instead of Rigidbody2D.

Setting gravityScale instead of bodyType.

You add a Rigidbody2D component and set its bodyType property to RigidbodyType2D.Kinematic to make it kinematic.

5fill in blank

hard

Fill all three blanks to get the Rigidbody2D, set its mass, and apply an upward force.

Unity

Rigidbody2D [1] = GetComponent<Rigidbody2D>();
[1].[2] = 5f;
[1].AddForce(new Vector2(0, [3]));

Drag options to blanks, or click blank then click option'

Arb

Bmass

C10f

DgravityScale

Attempts:

3 left

💡 Hint

Common Mistakes

Using gravityScale instead of mass.

Forgetting to use the same variable name consistently.

We get the Rigidbody2D component as rb, set its mass to 5, and apply an upward force of 10 on the y-axis.