Shutter speed controls both the amount of light entering the camera and the way that action or movement is captured. Fast shutter speeds freeze the action, whereas slower settings blur the movement
The aperture of the camera works like the iris in our eyes. Changing the aperture size (hole size) alter the amount of light entering the camera. Typically, small aperture (large f-numbers) are used for bright days and larger ones (small f-numbers) when the light is low