Force Flashcards
1
Q
what is a force
A
it is a push or pull
2
Q
what is the unit of force
A
newton
3
Q
how to convert newtons to kg
A
multiply by 10
4
Q
what is friction
A
it is the force that opposes two sliding options in cintact
5
Q
why is friction good
A
it prevents sliding while walking and prevents cars from skidding
6
Q
lubrication is…………
A
the cation of applying a substance as oil or grease to a component to minimise friction. the reduction of friction
7
Q
what is the difference between mass and weight
A
mass-is the actual amount of material contained in a body and is measured in grams,kg etc.
weight-is the exerted by the gravity of the object. measured in newtons
8
Q
what does hooke’s law state
A
the extension of a spring is directly proportional to the applied force in newtons
