Year 8 · Physical education · The body and exercise · Lesson 2
Heart, lungs and exercise
How the heart and lungs work during exercise, short-term and long-term effects of exercise, and working with made-up heart-rate data.
14-minute video lesson
Teaching, worked examples and 20 practice questions solved step by step.
Watch free for a monthWhat your child will learn
- Describe heart and lung roles
- Explain short-term effects
- Explain long-term effects
- Interpret heart-rate data
The method
- Short-term: during or just after.
- Long-term: regular training.
- Explain why.
- Use data carefully.
Key words: heart rate, oxygen, carbon dioxide, stamina, recovery.
Worked examples
The first three practice questions from the lesson, with every step.
Question 1
Made-up data: a pupil's heart rate is 65 bpm at rest and 140 bpm after running. By how much did it rise?
- Step 1: rise = after - rest
- Step 2: 140 - 65 = 75
Answer: 75 bpm
Question 2
Made-up data: a pupil's heart rate is 80 bpm at rest and 172 bpm after running. By how much did it rise?
- Step 1: rise = after - rest
- Step 2: 172 - 80 = 92
Answer: 92 bpm
Question 3
Made-up data: a pupil's heart rate is 58 bpm at rest and 131 bpm after running. By how much did it rise?
- Step 1: rise = after - rest
- Step 2: 131 - 58 = 73
Answer: 73 bpm