1) Lisa investigate the movement of water into and out of potato cells. What is the name for this sort of movement? a) excretion b) osmosis c) respiration 2) Small water molecules can pass through the potato membrane, larger sugar molecules can't. The membrane is ................. a) partially permeable b) permeable c) rigid 3) If the potato cells were put into an isotonic solution what would happen? a) net movement of water out of the potato cells b) same amount of water leaving the potato cell as entering it c) net movement of water entering the potato cells. 4) A class is being taught about elements in Group 1 (sodium, lithium, potassium etc). Why are they all in Group 1? a) They are all metals b) They all have one electron in their outer shell c) They all have 1 proton in their nucleus 5) When potassium is mixed with water what would you expect to see? a) floats, remains solid, moves slowly b) floats, might melt, moves rapidly, bursts into lilac flames c) floats, might melt, moves rapidly, fizzes 6) What is made when sodium reacts with water? a) Just sodium hydroxide b) Sodium hydroxide and hydrogen c) Sodium hydroxide, hydrogen and water d) Sodium hydroxide and carbon dioxide 7) A truck is moving along the motorway at a constant speed. Which Speed/time graph shows this? a) A b) B c) C d) D 8) The truck has been travelling for 120 seconds. It has a mass of 1000 kg and is moving at a velocity of 20 m/s. What is its momentum? a) 120000 kg m/s b) 20000 kg m/s c) 2400 kg m/s 9) The velocity of the truck tells us how fast it is going. What else does velocity tell us? a) The mass of the truck b) The direction the truck is going in c) The height of the truck d) How much fuel the truck has used

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