Contact and Non-Contact forces Flashcards
What is a Force?
A push or pull that acts on an object due to its interaction with another object
What is force Measured in and is it a scalar or vector?
Vector, Newtons
What is a Contact force?
Object are physically touching
State 3 Contact forces?
Friction, Air resistance, Tension
What is a Non-Contact force?
a force that doesnt require objects o be touching
What is Normal-Contact force?
an equal and opposite force acting upwards on an object to oppose a force such as weight from a ball on a table
State 3 Non-Contact forces?
Gravitational, Electrostatic, Magnetic
What are the features of magnetic and electrostatic forces?
attraction and repulsion
What is the law for the strength of non-contact forces?
Their strength decreases as the objects get further apart