Forces COPY COPY Flashcards
What is weight
The amount of force with which gravity pulls on an object;measured in newtons (N)
Friction
A force that tries to slow things down when two surfaces rub against each other. Friction is a force which opposes motion when two surfaces move across each other.
Tension
The pulling force acting on a stretched object
The pushing force acting on a compressed object
Contact force
The force acting on an object resting on a surface due to the compression of the surface
Air resistance
It is a force like friction which opposes motion through a gas or liquid due to the gas of liquid’s particles pushing against the object
Upthrust
The upwards acting force on an object due to pressure from the gas/liquid the object is submersed in
Unit of force
N/kg
What is meant by an objects weight
It is its mass x the gravitational field strength
What is a force
A push if a pull of one object on another
