Monthly Archives: April 2011

Friction

Explain why friction occurs. friction occurs because of uneven surfaces on objects. There are four different types of friction. Sliding friction occurs when two objects slide across each other. Rolling friction could be a piece of furniture rolling across the … Continue reading

Posted in Uncategorized | Leave a comment

Force

Force is a push or pull.The more newtons the great the push or pull which increases the force. Types of forces are,pull,push, gravity and net force are all types of force. Examples of force are pushing a skateboard, pulling a … Continue reading

Posted in Uncategorized | Leave a comment

Conservation of energy (Roller coaster)

In science class we were assigned a project to build a roller coaster out of paper. The roller coaster had to have three turns,one loop and two hills. Building the roller coaster wasn’t very hard. The reason we built it … Continue reading

Posted in Uncategorized | Leave a comment