(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)
(6 marks)
Time: 1 hour 30 minutes 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)
A car of mass 800 kg accelerates at 2 m/s². f2 integrated science exam paper
(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 student tests three liquids with universal indicator: (a) Name the male part of a flower
| Liquid | Colour of indicator | pH | |--------|--------------------|----| | Lemon juice | Red | 2 | | Soap solution | Blue | ___ | | Water | Green | 7 |
(a) Complete the pH for soap solution in the table. (1 mark) (1 mark) (d) Give agents of pollination