A car of mass 800 kg accelerates at 2 m/s².
A student tests three liquids with universal indicator:
(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) f2 integrated science exam paper
(6 marks)
(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) A car of mass 800 kg accelerates at 2 m/s²
(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) Complete the pH for soap solution in the table. (1 mark) (2 marks) (c) If the car stops suddenly,
| Liquid | Colour of indicator | pH | |--------|--------------------|----| | Lemon juice | Red | 2 | | Soap solution | Blue | ___ | | Water | Green | 7 |
Time: 1 hour 30 minutes Total Marks: 50