Button controls

Help button
Help button: This button will open a window with help information.
Command buttons
Reset button
Reset: reload the applet and reset the parameters.
Rewind button
Rewind: press and hold to advance the applet in reverse.
Pause button
Pause: temporarily stop the action in the applet.
Play button
Play: begin or resume the action in the applet.
Fast forward button
Fast Forward: press and hold to advance the applet.
End button
End: advance the applet to its end.
Speed button
Speed: click to select the number and input a higher number to increase the speed of the rewind and fast forward buttons.
Slider bar
Slider bar: shows the progression through the animation.
Drag controller
Drag controller: click and drag over this symbol to reposition the controller buttons within the applet frame.
Toggle controls
Collapse button: click this button to collapse controller button.

Using the applet

This applet has been designed to help students understand why the Earth experiences tides.

Tides are caused by the gravity of the Moon and the Sun which tug at the Earth's oceans. This gravitational pull causes tidal buldges which produce a high or low tide, depending on the coastal location. The alignment of the Sun and Moon affect the strength and direction of the gravitational tug which produces tidal variations throughout. The difference between high and low tides are greatest during spring tides and the least during neap tides.

Download the Flash Applet