The plates move towards one another and this movement can cause earthquakes and volcanoes. If two continental plates collide, neither can sink and so the land buckles upwards to form fold mountains. This is called a collision boundary . Earthquakes can occur at collision boundaries.

Convergent boundaries: where two plates are colliding. Island arcs and oceanic trenches occur when both of the plates are made of oceanic crust. The denser oceanic plate is subducted, often forming a mountain range on the continent. The Andes is an example of this type of collision.

Collision zones form when two continental plates move towards each other and collide. The land between the plates is forced upwards to form fold mountains, eg The Alps and Himalayas.

When two tectonic plates move toward each other and collide, they form a convergent plate boundary. The crust that makes up continental plates is thicker yet less dense than oceanic crust because of the lighter rocks and minerals that compose it.

Subduction zones occur all around the edge of the Pacific Ocean, offshore of Washington, Canada, Alaska, Russia, Japan and Indonesia. Called the “Ring of Fire,” these subduction zones are responsible for the world’s biggest earthquakes, the most terrible tsunamis and some of the worst volcanic eruptions.

A destructive plate boundary is sometimes called a convergent or tensional plate margin. This occurs when oceanic and continental plates move together. The oceanic plate is forced under the lighter continental plate. Friction causes melting of the oceanic plate and may trigger earthquakes.

Even if your objects are not actually rectangles, a common technique is to use a rectangle to represent your object anyway. Think of games like Mario or Sonic the Hedgehog- in those types of games, an invisible rectangle (called a hitbox) that surrounds the player is used for collision detection.

This tutorial introduces collision detection, which allows you to determine when two shapes touch. If you can determine that two shapes touch, you can trigger some action- think of detecting when the user has moused over a button, or when a game character touches the floor or a badguy, or when your animation reaches a certain state.

Convergent plate boundaries are locations where lithospheric plates are moving towards one another. The plate collisions that occur in these areas can produce earthquakes, volcanic activity, and crustal deformation. Teaching Plate Tectonics.

Bouncing the ball is just an example, but you can do anything you want. You could teleport the ball to the other side of the window so it wraps (like Pac-Man), or you could move to the next screen (like Zelda), or you could end the game (like Pong). Every other form of collision detection will follow those basic steps.