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P2
Equal and Opposite forces
Whet w objects interact, they exert equal and opposite forces. The unit of force is the Newton (N)

Newton's first Law
When the force on an object are balanced-equal in size but opposite in direction, the object is either:
stationary or,
Moving at a constant…

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The velocity of an object increases if the resultant force of an object is in the same direction as the
velocity

The velocity of an object decreases if the resultant force is in the opposite direction of the velocity

Examples: When a jet plane takes off, the thrust force of…

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Static Electricity

Inside an atom

-Nucleus containing protons and neutrons surrounded by electrons in energy levels/shells
-Proton has a positive charge
-Neutron has no charge
-An electron has a negative charge

-Electrons can be transferred from or to an atom
1. Adding electrons to an uncharged atom makes it negative…

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Charging a conductor

-A conductor can only hold charge if it is insulated/isolated from the ground. If it isn't insulated the
electrons will transfer to Earth

-To charge an insulated conductor it needs to contact a charged object

-If the object is positively charged, electrons transfer from the conductor to…

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