Energy
The study of motion.
What is mechanics?
States that energy cannot be created or destroyed.
What is the law of conservation of energy?
A push or pull.
What is a force?
The ability to move an object with less force.
What is mechanical advantage?
An example of a 1st class lever and explain the position of each part.
Resistance/fulcrum/effort
The ability to perform work.
What is energy?
Says that matter cannot be created or destroyed; it can only change forms.
What is the law of conservation of mass?
The amount of tension a material can withstand.
What is tensile strength?
You must pay for mechanical advantage by applying force over a longer distance.
What is the distance principle?
How a wheel and axle are a version of the lever.
Fulcrum is the axle, effort an resistance around the outside
The number of ways energy can exist.
What is two?
What is movement in a particular direction?
What is m?omentum
Friction
What is a force that resists movement?
Place two inclined planes bottom to bottom.
How is a wedge formed?
A wheel with teeth.
What is a gear?
Energy being used.
What is kinetic energy?
Speed in a particular direction.
What is velocity?
Substances that reduce friction.
What are lubricants?
An inclined plane wrapped around a cylinder or cone.
What is a screw?
A grooved wheel that serves as the fulcrum of a lever.
What is a pulley?
Energy being stored.
What is potential energy?
A function of mass and velocity.
What is momentum?
A change in position due to an applied force.
What is work?
The three parts of a lever.
What is effort, resistance & fulcrum?
How the mechanical advantage of a pulley system is determined.
What is the number of pulleys used in the system?