lesson 3 newtons laws of motion Flashcards
1
Q
friction
A
force caused by any two objects in contact
2
Q
force
A
any action that changes the shape or movement of an object
3
Q
velocity
A
speed and direction
4
Q
inertia
A
an object resistance to any change in motion
5
Q
speed
A
the rate at which something moves
6
Q
motion
A
the change in an objects position over time
7
Q
reference point
A
an object that appears to stay in place
8
Q
acceleration
A
the rate at which velocity changes
9
Q
newtons first law
A
an object in motion, will stay in motion, and an object at rest will stay at rest, until an unbalanced force acts on it
10
Q
newtons second law
A
an object that has an unbalanced force acting on it, will accelerate in the direction of that force
