Magnetism
What is a Magnet?
An object that produces a magnetic field.
What is motion?
Change in an object's position over time.
What is a Machine?
One basic moving part of a device (Example: lever).
Who discovered electricity?
Benjamin Franklin
What is Pascal’s Principle?
Pressure applied to a fluid in a closed system is transmitted equally in all directions.
What are magnetic poles?
The north and South ends of a magnet.
What is Force?
A push or pull acting on an object.
What is a lever?
A rigid bar that privots around a point.
What is a charge?
A property of matter that causes it to experience a force in an electric field.
What is Lift?
The upward force on an object caused by pressure differences (important in flight).
Describe what a compass is.
A tool with a magnetic needle that aligns with Earth’s magnetic field.
Who created the Laws of Motion?
Sir Isaac Newton
What is a complex machine?
Combine two or more simple machines (e.g., a bicycle).
What is the most neutral atom?
neutrons
What is the 3rd Law?
For every action, there is an equal and opposite reaction.
What is the Law of Attraction?
Opposite poles attract; like poles repel.
What is Gravity?
A force pulling object toward Earth.
What is a screw?
An inclined plane wrapped around cylinder.
What is a Circuit?
A path through which electricity flows.
What is an inclined plane?
A flat surface tilted to help move objects.
What is the relationship between electricity and magnetism called?
Eletromagnetism
How many laws are in Newton's Law of Motion
3
Describe the Wheel and Axis.
Two circulator objects of different sizes that rotate together.
What is Voltage?
Electric potential difference between two points.
Force is calculated by...
Mass x Acceleration