F2 Integrated Science Exam Paper -

Time: 1 hour 30 minutes Total Marks: 50

A student tests three liquids with universal indicator: f2 integrated science exam paper

| Liquid | Colour of indicator | pH | |--------|--------------------|----| | Lemon juice | Red | 2 | | Soap solution | Blue | ___ | | Water | Green | 7 | Time: 1 hour 30 minutes Total Marks: 50

(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 (2 marks) (e) Write the word equation for

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

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

(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)