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Cambridge IGCSE™ Co-ordinated Sciences 0973/11

Paper 1 Multiple Choice Core · Interactive Student Form · 40 marks

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Question 1Not answered

Which characteristic of a living organism releases energy for growth?

Question 2Not answered

A student draws a diagram of a chicken’s egg and includes the magnification, m, of the drawing. The student writes m = ×2. The image length on the diagram is 140 mm. What is the length of the actual chicken’s egg?

Question 3Not answered

Which colour does Benedict’s solution change to when heated with a reducing sugar?

Question 4Not answered

Which graph shows the effect of temperature on enzyme activity?

Diagram for question 4
Question 5Not answered

Which conditions will result in the highest rate of photosynthesis?

Question 6Not answered

Which row about food groups is correct?

Question 7Not answered

Which label shows the position of the xylem in the cross-section of the root of a dicotyledonous plant?

Diagram for question 7
Question 8Not answered

The apparatus shown is set up and left for 10 minutes. The insects are able to move around in the test-tube but the wire mesh prevents them from falling into the sodium hydroxide. In which direction does the oil droplet move and why?

Diagram for question 8
Question 9Not answered

One response to a frightening situation is an increase in heart rate caused by the release of adrenaline. Which statement about adrenaline is correct?

Question 10Not answered

Which part of the male reproductive system is correctly matched to its function?

Question 11Not answered

Continuous variation is defined as a ......1...... of phenotypes ......2...... . Which words correctly complete gaps 1 and 2?

Question 12Not answered

In a food chain, what do all living organisms get from their food?

Question 13Not answered

Forests are cut down and burnt in deforestation programmes. As a result of this, which gas in the atmosphere increases in concentration?

Question 14Not answered

Dye X is a mixture of different coloured substances. Chromatography is used to compare X with three other mixtures, P, Q and R. The results are shown. Which mixtures contain dye X?

Diagram for question 14
Question 15Not answered

What do the chemical symbols N₂ and Ni represent?

Question 16Not answered

The nucleon number of a hydrogen atom is 1. What is present inside the nucleus of this atom?

Question 17Not answered

The diagram represents an ionic compound formed from three types of atom. What is the chemical formula for this compound?

Diagram for question 17
Question 18Not answered

The diagram shows the electrolysis of dilute sulfuric acid using inert electrodes. Which substance is produced by electrolysis at the negative electrode?

Diagram for question 18
Question 19Not answered

When petrol burns in a car engine, carbon monoxide, CO, and nitrogen monoxide, NO, are produced. These gases pass through a catalytic converter where carbon monoxide reacts with nitrogen monoxide. carbon monoxide + nitrogen monoxide → nitrogen + carbon dioxide. Which statement is not correct?

Question 20Not answered

Four different oxides are listed: 1 calcium oxide, 2 lithium oxide, 3 nitrogen oxide, 4 phosphorus oxide. Which oxides are acidic oxides?

Question 21Not answered

Substance X is mixed with aqueous sodium hydroxide. A green precipitate is produced. Which metal ion is present in X?

Question 22Not answered

Potassium is in Group I of the Periodic Table. Which statement about potassium is correct?

Question 23Not answered

What is a use for argon?

Question 24Not answered

Which metal is extracted from its ore by electrolysis?

Question 25Not answered

Which gas is present in clean air?

Question 26Not answered

Which statement about petroleum is correct?

Question 27Not answered

Which statement about poly(ethene) is correct?

Question 28Not answered

The speed–time graph represents part of a car journey. How far does the car travel in the part of the journey shown?

Diagram for question 28
Question 29Not answered

The mass of an empty measuring cylinder is 15 g. Liquid is poured into it and the total mass is now 95 g. The reading on the measuring cylinder is shown. What is the density of the liquid?

Diagram for question 29
Question 30Not answered

The diagram shows a child of weight 240 N sitting on a see-saw (teeter-totter) at a distance of 1.6 m from the pivot. What is the moment of the weight of the child about the pivot, with the correct unit?

Diagram for question 30
Question 31Not answered

Which two energy sources are both non-renewable?

Question 32Not answered

Someone wearing wet clothes can feel cold even on a warm day. Why do they feel cold?

Question 33Not answered

How is thermal energy transferred from the Sun through the vacuum of space?

Question 34Not answered

A ray of light enters a parallel-sided glass block. At which labelled point does the ray leave the block?

Diagram for question 34
Question 35Not answered

Which change to a sound wave makes the sound louder?

Question 36Not answered

Three charged balls P, Q and R are suspended by insulating threads. Ball P is negatively charged. Ball Q is brought close to ball P and the balls move away from each other. Ball Q is then brought close to ball R and the balls move closer to each other. What are the signs of the charges on ball Q and ball R?

Diagram for question 36
Question 37Not answered

Which two electrical quantities are measured in the same unit?

Question 38Not answered

A battery is connected in a circuit to a 3.0 Ω resistor, a 6.0 Ω resistor and two ammeters P and Q. What is the combined resistance of the two resistors and which ammeter has the greater reading?

Diagram for question 38
Question 39Not answered

The current in an electric kettle used to boil water is 9.0 A. What is the most appropriate rating of fuse to use with this kettle?

Question 40Not answered

A nuclide of hydrogen is represented by ³₁H. Which row shows the number of protons and the number of neutrons in this nuclide?