Question 1: Define aerobic exercise and give two examples of activities that are aerobic.

Answer: Aerobic exercise is sustained physical activity that increases breathing and heart rate, using oxygen to generate energy. Examples include running and cycling.

Question 2: Define anaerobic exercise and give two examples of activities that are anaerobic.

Answer: Anaerobic exercise is intense physical activity performed in short bursts, where oxygen is not the primary energy source. Examples include sprinting and weightlifting.

Question 3: Describe how your breathing differs during aerobic exercise compared to anaerobic exercise.

Answer: During aerobic exercise, breathing is steady and deep to supply oxygen to the muscles. During anaerobic exercise, breathing becomes rapid and shallow as the body works without enough oxygen.

Question 4: Explain why muscles might feel sore after anaerobic exercise but not after aerobic exercise.

Answer: Muscles feel sore after anaerobic exercise because of the build-up of lactic acid produced during intense activity without sufficient oxygen, whereas aerobic exercise produces less lactic acid.

Question 5: List two benefits of engaging in aerobic exercise regularly.

Answer: Improves cardiovascular health and increases stamina and endurance.

Question 6: List two benefits of engaging in anaerobic exercise regularly.

Answer: Builds muscle strength and power, and helps improve overall speed and agility.

Question 7: Describe how the energy system differs between aerobic and anaerobic exercise.

Answer: Aerobic exercise relies on oxygen and uses fat and carbohydrate stores for energy, while anaerobic exercise relies on stored glycogen and produces energy quickly without oxygen.

Question 8: Draw a simple diagram showing the difference between the energy systems used in aerobic and anaerobic exercise.

Answer: A correct sketch would show two boxes: one labeled 'Aerobic' with arrows indicating oxygen intake and fat/carbohydrate use; the other labeled 'Anaerobic' with arrows indicating rapid energy production from glycogen without oxygen.

Question 9: Sketch a diagram illustrating how the body's heart rate changes during the start, peak, and recovery phases of exercise.

Answer: A graph with the x-axis labeled 'Time' and y-axis labeled 'Heart Rate'; the line should rise quickly at the start, peak during intense activity, and then gradually decline during recovery.

Question 10: Explain why it is important to include both aerobic and anaerobic exercises in a fitness program.

Answer: Including both types improves overall fitness by enhancing endurance, strength, and speed, and helps prevent boredom and overuse injuries.

Question 11: Identify which type of exercise (aerobic or anaerobic) is more suitable for improving long-distance running performance and explain why.

Answer: Aerobic exercise is more suitable because it enhances cardiovascular endurance and stamina needed for long-distance running.