Study guides, Class notes & Summaries

GCSE AQA Triple Chemistry Paper 1 2024/2025 QUESTIONS AND CORRECT ANSWERS ALREADY PASSED C8 1) What is required for a reaction to happen? - answer a successful collisions C8 2) How can you use a graph to calculate the rate of reaction? - answer calculate gradient (on a curve tangent) C8 3) What four things can speed up the rate of reaction? - answer temperature, concentration, surface area and catalyst C8 11) What formula is used to calculate the rate of reaction? - answer amount of ...

1 (a) The materials that products are made from are chosen because of their properties. Figure 1 shows a table of products. For each of the products shown, give a property of the material it is made from that makes the material suitable for the product. The first one has been done for you. Picture of product Material and product Property DONOT WRITEIN THISAREA SKETCH BOOK Cotton T-shirt Polyester resin printed circuit board (PCB) Balsa wood toy plane Stainless steel kitchen scisso...

1 Computers (a) The CPU contains a number of components. (i) Complete the table with the correct bus for each role. (3) Bus Role Carries a read signal to main memory. Carries the memory location of a piece of data. Carries an instruction from main memory to the CPU. (ii) Identify the component inside the CPU that stores data. (1) A Arithmetic logic unit B Clock C Main memory D Register

(a) Which one of the following is an example of a pivot joint? (1) A Hip B Knee C Neck (atlas and axis) D Shoulder (b) Which one of the following is the role of a ligament? (1) A To join blood vessel to blood vessel B To join bone to bone C To join bone to muscle D To join muscle to muscle (c) Which one of the following is an example of an involuntary muscle? (1) A The biceps B The hip flexors C The muscular wall of an artery or vein D The outer layer surrounding the lungs

Figure 1 shows a bird called an egret on the back of a buffalo. (Source: © Jaromir Chalabala/Shutterstock) Figure 1 (a) (i) The egret eats parasites that live on the skin of the buffalo. Which term describes this relationship, where the buffalo and the egret both benefit? (1) A eutrophication B mutualism C indigenous D biodiverse DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA (ii) The buffalo is part of the carbon cycle. Use words from the box to complete the sentences. clean...

(a) Figure 1 shows some of the apparatus that students use to determine the resistance of a piece of iron wire. connector iron wire connector variable resistor battery Figure 1 Add connecting wires, a voltmeter and an ammeter to complete the circuit in Figure 1 so that the students can determine the resistance of the piece of iron wire. (2) (b) The students extend the investigation to determine how the resistance of the iron wire changes with its length. (i) Give the name of one addit...

1 (a) Figure 1 shows the parts in an electrical circuit. switch lamp DONOT WRITEIN THISAREA 9 V battery connector resistor connector Figure 1 Draw the circuit diagram of this electrical circuit in the space provided. The battery symbol and some of the connecting wires have been drawn for you. (4) circuit diagram DONOT WRITEIN THISA REA battery 2 *P72564A02

1 People with diabetes cannot always control the concentration of glucose in their blood. (a) Two people eat identical meals. One person has diabetes, the other person does not have diabetes. Figure 1 shows the concentration of glucose in the blood of these two people after eating the meals. 20 concentration of 15 glucose in blood 10 person with diabetes in mmol per dm3 5 person who does not have diabetes 0 0 2 4 6 time after eating the meal in hours Figure 1 (i) Calculate the ma...

This question is about waves in the electromagnetic (e‑m) spectrum. (a) (i) Figure 1 shows some types of radiation that form part of the e‑m spectrum and some uses of e‑m radiation. Draw one straight line from each type of e‑m radiation to its use. One line has been drawn for you. (3) type of radiation use of radiation satellite transmission infrared disinfecting water visible light colour photography microwaves scanning for broken bones ultraviolet thermal imaging Figure...

(a) Which of these is a scalar quantity? (1) A acceleration B distance C force D weight (b) A student has some cupcake cases. One cupcake case is shown in Figure 1. (Source: © Anton Starikov/Shutterstock) Figure 1 The student drops a stack of cupcake cases with the base facing downwards, as shown in Figure 2

1 This question is about waves in the electromagnetic (e‑ m) spectrum. (a) (i) Figure 1 shows some types of radiation that form part of the e‑ m spectrum and some uses of e‑ m radiation. Draw one straight line from each type of e‑ m radiation to its use. One line has been drawn for you. (3) type of radiation use of radiation satellite transmission infrared disinfecting water visible light colour photography microwaves scanning for broken bones ultraviolet thermal imaging ...