2-1 Gravity and Friction Flashcards
1
Q
force
A
force is a push or pull
2
Q
contact force
A
a push or pull caused by an object or person
3
Q
non-contact force
A
a push or pull of an object without touching it
4
Q
Gravity
A
an attractive force that exists between all objects that has mass
5
Q
Mass
A
the amount of matter in an object
6
Q
Weight
A
the gravitational force exerted on an object
7
Q
Friction
A
a force that resists the motion of two surfaces that are touching
