Question 1.5.2   Explain your reasoning for your answer in Question 1.5.1. (1)

Question 1.5.1   Choose the correct answer. Which one of the following is true?   a)  Sound travels faster in water than in air. b)  Sound travels faster in air than in water. c)  Sound travels at the same speed in water and in air. (1)

I want to investigate if how I pluck a guitar string changes the volume it makes. Our investigation question is: Does plucking a string harder make the sound louder?

QUESTION 2 Answer the following questions regarding changing sounds:

Question 1.6   Explain why sound cannot travel in space? (1)

Person A & B are both eating the same sushi. Person A says to B below.  Kono sushi wa oishii [1] “This sushi is delicious, isn’t it? ” 

What does Sue do on Saturday? 

A: Mary san wa ninensee desu.  B: Takeshi san [particle] ninensee desu.     

3.3 Pretoria. (1)

1.1.7 Imifino yenzani empilweni yomuntu? (1)