Question 261
In an acid-base reaction, which species donates a proton (H⁺)?Chemical changeAcid-base reactions - Brønsted–Lowry theoryhard
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NSC Physical Sciences – South Africa
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Question 262
What is the acceleration of a 2 kg mass moving with a net force of 10 N acting on it?MechanicsMechanics - Newton's Lawseasy
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Question 263
Which component in an electric circuit stores electrical energy?Electricity and magnetismElectricity - Components and circuitseasy
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Question 264
Which of these reactions is an example of a chemical change?Chemical changeChemical reactions - Types of changesmedium
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Question 265
What functional group characterizes alcohols?Organic chemistryOrganic compounds - Functional groupseasy
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Question 266
A car moves at 20 m/s and comes to rest in 5 seconds with uniform deceleration. What is the magnitude of the acceleration?MechanicsMechanics - Kinematicsmedium
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Question 267
Which law explains the force between two magnetic poles?Electricity and magnetismMagnetism - Forces between poleshard
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Question 268
Which type of wave interference results in a decrease in wave amplitude?Waves and opticsWaves - Interferencemedium
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Question 269
Which of these statements about covalent bonds is true?Matter and materialsChemical bonding - Covalent bondinghard
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Question 270
A wave has a frequency of 500 Hz and a wavelength of 2 m. What is its speed?Waves and opticsWaves - Wave propertiesmedium
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