Programming 102

1. Which block do we use to set the timer to 0?

• {"func":"blockSensingResetTimer"}
• {"func":"blockLooksShow"}
• {"type":"wrapper","func":"valueSensingTimer"}
• {"func":"blockPhysicsSetRestitution","values":[{"type":"number","value":"0"}]}

2. What happens to the timer after it is reset?

• It will remain at 0 until the program ends
• It will start decreasing
• It will start increasing
• It is not possible to reset the timer

3. True or False: After the program starts, it is impossible to set the timer to 0.

• True
• False

4. Yolanda wants to program a maze game where she keeps track of the high score based on how fast the player reaches the end. Which block will help her keep track of the quickest times?

• {"type":"wrapper","func":"valueSensingTimer"}
• {"func":"blockControlWait","values":[{"type":"number","value":"1"}]}
• {"func":"blockControlForever","containers":[null]}
• {"func":"blockMotionPointDirection","values":[{"type":"string","value":"90"}]}

5. Zack wants to program a game where the scuba diver will lose a life if he stays underwater after 20 seconds. This resets whenever the diver comes up for air or touches an air tank while underwater. Which code block will help Zack with this feature of his game?

• {"func":"blockSensingResetTimer"}
• {"func":"blockPhysicsApplyImpulse","values":[{"type":"number","value":"0"}]}
• {"func":"blockControlWait","values":[{"type":"number","value":"20"}]}
• {"func":"blockPhysicsSetStatic","values":[{"type":"boolean","value":"true"}]}

6. True or False: It is good practice to use meaningful or helpful names to identify the object.

• True
• False

7. True or False: You can only add labels to some Actors.

• True
• False

8. What does the Stop All block do?

• Stops all scripts
• Stop certain scripts from the actor who uses it
• Doesn't do anything to the actors
• Stops every actor's scripts

9. Kevin has created a game and wants to stop the game completely when he loses. Which block should he use?

• {"func":"blockControlStop","values":[{"type":"choice","value":"all"}]}
• {"func":"blockPenClear"}
• {"func":"registerTrigger","values":[{"type":"boolean","value":"true"}]}
• {"func":"registerSpriteTrigger"}

10. True or False: You can restart any code block after calling Stop All.

• True
• False