P8.2 Flashcards
What is a force
A force is a push or pull that acts on an object of its interaction with another object
What are 2 forces that touch each other called
Contact forces
Contact forces examples
Friction,air resistance, tension and normal contact force
Non-contact forces
Magnetic force, electrostatic force and force of gravity
Newton third law
When 2 objects interact with each other, they exert equal and opposite forces on each other
What is the unit of force
Newton
What is the weight
Force of gravity on the object due to the earth
What is the driving force
Force that makes it move which is known as the engine or motive force. This pushes car forward because there is firction between ground and tyre of each drive wheel.
Friction on car
-force of the friction of the rosd on the tyre is in forward direction
-the force of friction of the tyre on the road id in the reverse direction
