Mathematics Specification A - 4MA1 PearsonEdexcel

Measures

Bayani Gaba-gaba

Measures connect mathematics to the physical world. Every time you read a thermometer, time a race, estimate the height of a building or calculate how fast a car is travelling, you are applying the ideas in this topic. Fluency with scales, units and compound measures is essential across science, geography and everyday life.

You will learn to read scales accurately, convert between 12-hour and 24-hour time, estimate real-world quantities sensibly, measure and describe angles using three-figure bearings, and work with the compound measures speed, density and pressure using their defining formulae.

Manufura

Interpret scales on a range of measuring instruments
Calculate time intervals in terms of the 24-hour and the 12-hour clock
Make sensible estimates of a range of measures
Understand angle measure including three-figure bearings
Measure an angle to the nearest degree
Understand and use the relationship between average speed, distance and time
Use compound measure such as speed, density and pressure

Takardar Darasi

A nurse reads a thermometer graduated in half-degree intervals. A pilot reports a heading of 072 degrees to air-traffic control. An engineer calculates whether a bridge can withstand a pressure of 850 kPa. Behind each of these tasks lies the same skill: extracting a reliable number from a measuring instrument or formula and knowing what it means.

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Nazarin Darasi

Barka da kammala darasi akan Measures. Yanzu da kuka bincika mahimman raayoyi da raayoyi, lokaci yayi da zaku gwada ilimin ku. Wannan sashe yana ba da ayyuka iri-iri Tambayoyin da aka tsara don ƙarfafa fahimtar ku da kuma taimaka muku auna fahimtar ku game da kayan.

Za ka gamu da haɗe-haɗen nau'ikan tambayoyi, ciki har da tambayoyin zaɓi da yawa, tambayoyin gajeren amsa, da tambayoyin rubutu. Kowace tambaya an ƙirƙira ta da kyau don auna fannoni daban-daban na iliminka da ƙwarewar tunani mai zurfi.

Yi wannan ɓangaren na kimantawa a matsayin wata dama don ƙarfafa fahimtarka kan batun kuma don gano duk wani yanki da kake buƙatar ƙarin karatu. Kada ka yanke ƙauna da duk wani ƙalubale da ka fuskanta; maimakon haka, ka kallesu a matsayin damar haɓaka da ingantawa.

A thermometer has labelled marks at 20 and 30 with 5 small divisions between them. The reading is 2 divisions above 20. What is the temperature? A) 22 B) 24 C) 25 D) 28 Answer: B
A train departs at 14:35 and arrives at 17:10. How long is the journey? A) 2 hours 25 minutes B) 2 hours 35 minutes C) 3 hours 25 minutes D) 2 hours 45 minutes Answer: B
The bearing of point B from point A is 245 degrees. What is the bearing of A from B? A) 065 degrees B) 425 degrees C) 155 degrees D) 045 degrees Answer: A
A car travels 150 km in 2 hours 30 minutes. What is the average speed? A) 75 km/h B) 50 km/h C) 60 km/h D) 65 km/h Answer: C
A block has a mass of 240 g and a volume of 80 cm cubed. What is its density? A) 0.3 g/cm cubed B) 3 g/cm cubed C) 30 g/cm cubed D) 320 g/cm cubed Answer: B