Question

An example of an experiment that will investigate the effects of the physical activity of the pulse or heart rate?
(if it is possible to give me the last 3 (down below) it would be great, thanks)
- Hypothesis
- Research Question
- Variables (Independent Variable, Dependent Variable, and Controlled Variable)

Answer 1

Investigating the Effect of Exercise on Pulse Rate

Aim: To see what happens to the pulse rate during exercise.

Prediction: I predict that the pulse rate will increase in order to take more oxygen for respiration. The heartbeat will increase and become stronger to transport oxygen and carbon dioxide to and from the muscle cells. The breathing rate will increase in order to get rid of the extra waste such as Carbon dioxide. Respiration is the release of energy. Anaerobic respiration occurs during prolonged exercise as our heart and muscle use up a lot of oxygen, this prevents oxygen from being transported to the lungs quick enough. The word equation for this is Glucose---- Lactic acid and energy.