Answer:
1) The ability to exert a maximal force in as short a time as possible, as in accelerating, jumping and throwing implements. While strength is the maximal force you can apply against a load, power is proportional to the speed at which you can apply this maximal force. Broad jump test.
A example: While strength is the ability to exert force, power is the ability to exert force rapidly. For example, muscular strength is what it takes to push through a heavy set of barbell squats, and muscular power is the explosiveness it takes to jump up and dunk a basketball.
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3) Aerobic means 'with air' and refers to the body producing energy with the use of oxygen. Anaerobic means 'without air' and refers to the body producing energy without oxygen. This is typically exercise that is performed at a higher intensity. There are two ways that the body can produce energy anaerobically. The biggest difference between aerobic and anaerobic exercise lies in how the body gets its energy. For anaerobic exercise, the muscles will use stored energy sources to fuel itself rather than oxygen, which includes breaking down glucose. Aerobic exercise, however, requires continuous and peak oxygen consumption.