Unit Test Programming 302

When physics is turned on, what are the default Active/Static settings for an Actor?

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What would this code block do?

• • It would only set horizontal gravity to 0, meaning that when physics is turned on, the Actors will be pulled down.

• • It would only set horizontal gravity to 0, meaning that when physics is turned on, the Actors will be pulled up.

• • It would only set vertical gravity to 0, meaning that when physics is turned on, the Actors will be pulled to the right.

• It would set both horizontal and vertical gravity to 0, so that when physics is turned on, the Actors will stay where they are. There will be no gravitational force.

What would this code block draw?

• • A square

• • A rectangle

• A triangle

• • A circle

When will this code block be run?

• • When the Actor is at the top edge of the screen

• • When the Actor is in the center of the screen

• • When the Actor is at the bottom edge of the screen

• • When the Actor is on the bottom left corner of the screen

There are two Actors in Kate's project: a green alien and an orange alien. The green alien has a restitution of 1. The orange alien has a restitution of 10. Which Actor is bouncier?

• • The orange alien

• • The green alien

• • Both aliens are equally bouncy

• • It depends on what value gravity has been set to

What does this code block do?

• • It applies an impulse to the Actor that is proportional to its distance from the sling. The closer the Actor is, the stronger the impulse.

• • It applies a fixed impulse to the Actor, regardless of the distance to the sling.

• • It applies an upward impulse to the Actor that is proportional to its distance from the sling. The Actor will always move upwards.

• • It applies an impulse to the Actor that is proportional to its distance from the sling. The farther away the Actor is, the stronger the impulse.

What is the difference between an impulse and an Actor's velocity?

• • An impulse is a property of an Actor, while velocity acts on an Actor

• • An impulse acts on an Actor, while velocity is a property of an Actor

• • Both an impulse and velocity act on an Actor

• • Both an impulse and velocity are properties of an Actor

What would these code blocks do to an Actor?

• • The Actor would change colors, then hide

• • The Actor would fade away

• • The Actor would get smaller, then hide

• • The Actor would slowly turn into a ghost

What is the difference between an impulse and an Actor's velocity?

• • An impulse acts on an Actor, while velocity is a property of an Actor

• • An impulse is a property of an Actor, while velocity acts on an Actor

• • Both an impulse and velocity act on an Actor

• • Both an impulse and velocity are properties of an Actor

How many Actors can you animate at once?

• • Only 5 Actors can be animated on the Stage at any given time

• • Only one Actor at a time

• • You cannot animate Actors

• • As many as you want