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ABAINEH

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Rocket works on the principle of conservation of A .mass B. energy C. momentum D. velocity
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Which of the following statement is NOT true for collisions? A. Momentum is conserved in elastic collisions but not in inelastic collisions B. Total kinetic energy is not conserved in inelastic collisions but momentum is...
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. .A 5kg object moving at 10m/s collides with a stationary 3kg object in an isolated system. After the collision, the two object stick together and move as one mass. What can be said about the total momentum and kinetic...
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. A 0.2kg ball is moving at a velocity of 10m/s .It is hit a bat and its velocity changes to 5m/s in the opposite direction. What is the impulse of the ball? A.5kg.m/s B.15kg.m/s C.10kg.m/s D.3kg.m/s
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In the absence of non-conservative force like friction. Which of the following is true about mechanical energy during such a process? A. The total mechanical energy (kinetic + potential) changes, but the individual energ...
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The diameter of the wheel is 20 times greater than the diameter of the axle.what is the M.A of this wheel and axle system?
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In Kotlin, which function allows you to filter elements of a collection based on a specified condition? Choose one of the following.A.sort() B.map() C.filter() D reduce()
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Which component is commonly used in Android to create and manage the layout and positioning of user interface elements within an app? Choose one of the following. A.Contentprovider B.Activity Thread C.Resource manager D...
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Which of the following are benefits of using immutable lists in Kotlin? Select all that apply. You can select more than one option. Allows storing more items than mutable lists. Prevents accidental modification of data....
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In Kotlin, which keyword is used to define an interface? Choose one of the following. A.enum B.intereface C .Object D,class
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Which feature of Kotlin allows you to create more readable and compact function declarations by omitting curly braces and the return keyword for single expression functions? Consider the following Kotlin function example...
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What is the purpose of XML files in Android development? Choose one of the following. A.To store user data and preference B.to execute background services C.to design user interfaces and layout element D.to compile the k...
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Which of the following is a basic data type in Kotlin? Choose one of the following. A.Document B.Font C.String D.Text
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What is the primary purpose of using a sealed class in Kotlin? Choose one of the following.A.to allow unlimited extensions without constraints B.to provides a blueprint for generating random data classes C.to restrict cl...
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Which of the following are correct Kotlin variable declarations? Select all that apply. kotlin // Identify valid Kotlin variable declarations You can select more than one option. kotlin var score: Double = 0.0 score = nu...
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In Kotlin, what is the primary purpose of the main function? Choose one of the following.A.to define a global variable scope B.to create an XML layout for the UI C.to serve as the entry point of a kotlin program D.to han...
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The RelativeLayout allows you to position widgets relative to each other or within the parent container. Choose one of the following. A.To position widgets relative to each other or the parent container B.To implement mu...
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In Android development using Kotlin, what is the purpose of initializing a variable? Choose one of the following. A.To define the variable's data type B.To automatically convert data into a specific format C.to assign a...
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Which of the following is a fundamental data type in Kotlin used to represent whole numbers? // Example Kotlin declaration val number: Int = 10 A.float B.String C. Int D.Boolean
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Which tool within Android Studio is primarily used for examining the execution of an Android application and diagnosing potential issues? For example, if you want to step through your code to see the state of your app va...
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In Kotlin, which feature improves safety by helping to avoid null pointer exceptions? Choose one of the following. A.Type inference Mechanism B.Automatic garbage collation C.inheritance and inference implementation D.nul...
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What type of file in an Android app project is primarily used to define the layout of user interfaces? Choose one of the following.A.JSON file B>XML file C.JAVA file D.Kotlin file
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Which operator is used in Kotlin to declare a variable? Choose one of the following. A.Def or fun B.Val or var C. set or get D,new or create
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What is a key advantage of using ConstraintLayout in Android apps? Choose one of the following. a.it allows for a more complicated UI hierarchy B. it provides better performance than framelayout C.it is the only layout t...
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Which of the following languages is primarily used for developing Android applications and is supported by Android Studio? Choose one of the following. a.ruby B.python C.kotlin D.Swift
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