Introduction to Forces Flashcards
1
Q
counteract
A
to act against something, causing it to have less of an effect
2
Q
force
A
a push or pull
3
Q
friction
A
a resistance to motion caused by two surfaces rubbing against each other
4
Q
gravity
A
the force that one massive object exerts to attract another object to it; expressed as the weight of an object
5
Q
magnitude
A
the size or quantity of something
6
Q
net force
A
the sum of all of the forces acting on an object
7
Q
normal force
A
the support force a surface exerts on an object; always at a ninety-degree angle to the surface
8
Q
vector
A
a quantity that has both a size and a direction
