Measures
Overview
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.
Objectives
- 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
Lesson Note
Available on the Green Bridge App
Download the Green Bridge CBT app on your phone or computer to access full lesson notes, practice questions, and more.
Lesson Evaluation
Congratulations on completing the lesson on Measures. Now that youve explored the key concepts and ideas, its time to put your knowledge to the test. This section offers a variety of practice questions designed to reinforce your understanding and help you gauge your grasp of the material.
You will encounter a mix of question types, including multiple-choice questions, short answer questions, and essay questions. Each question is thoughtfully crafted to assess different aspects of your knowledge and critical thinking skills.
Use this evaluation section as an opportunity to reinforce your understanding of the topic and to identify any areas where you may need additional study. Don't be discouraged by any challenges you encounter; instead, view them as opportunities for growth and improvement.
- 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
Available on the Green Bridge App
Download the Green Bridge CBT app on your phone or computer to access full lesson notes, practice questions, and more.
Available on the Green Bridge App
Download the Green Bridge CBT app on your phone or computer to access full lesson notes, practice questions, and more.
Recommended Books
Practice Mock Questions
Want to practice mock questions on Measures? Download the Green Bridge CBT app to access mock questions and full practice assessments for this topic.
Download The App On Google Playstore
Everything you need to excel in your exams
