F2 Integrated Science Exam Paper File

(b) Is lemon juice acidic, basic, or neutral? (1 mark) (c) Name another natural indicator besides universal indicator. (1 mark) (d) Describe what happens when an acid reacts with a base. (2 marks) (e) Write the word equation for the reaction between hydrochloric acid and sodium hydroxide. (3 marks) Total marks: 50

(a) Write down the formula for force. (1 mark) (b) Calculate the force required. (2 marks) (c) If the car stops suddenly, why do passengers lurch forward? (2 marks) (d) State Newton’s first law of motion. (1 mark) (8 marks)

| Liquid | Colour of indicator | pH | |--------|--------------------|----| | Lemon juice | Red | 2 | | Soap solution | Blue | ___ | | Water | Green | 7 | f2 integrated science exam paper

A car of mass 800 kg accelerates at 2 m/s².

(6 marks)

(a) Complete the pH for soap solution in the table. (1 mark)

Time: 1 hour 30 minutes Total Marks: 50

A student tests three liquids with universal indicator:

(a) Name the male part of a flower. (1 mark) (b) What is pollination? (2 marks) (c) After fertilization, which part of the flower becomes the fruit? (1 mark) (d) Give agents of pollination. (2 marks) 22. Forces and motion (6 marks) (b) Is lemon juice acidic, basic, or neutral