Force Vocab Flashcards
0
Q
Net Force
A
- sum of all of the forces that are acting on an object
1
Q
Force
A
- a push or pull exerted on an object
2
Q
Friction
A
- force that opposes the sliding motion between two touching surfaces
3
Q
Gravity
A
- attractive force between two objects that depends on the masses of the objects and the distance between them
4
Q
Field
A
- a region of space in which every point has a physical quantity, such as force
5
Q
Weight
A
- gravitational force exerted on an object
6
Q
Newton’s first law of motion
A
- states that an object moving at a constant velocity keeps moving at that velocity unless an unbalanced force acts on it
7
Q
Inertia
A
- tendency of an object to resist any change in its motion
8
Q
Newton’s second law of motion
A
- acceleration of an object is in the same direction as the net force on the object, and that the acceleration equals the net force divided by its mass
9
Q
Newton’s third law of motion
A
- when one object exerts a force on a second object, the second object exerts a force a force on the first object that is equal strength and in opposite direction
10
Q
Air resistance
A
- force that opposes the motion of objects that move through the air
11
Q
Terminal velocity
A
- the maximum speed an object will reach when falling through a substance, such as air
12
Q
Free fall
A
- describes the falling of an object on which only the force of gravity is acting
13
Q
Centripetal force
A
- a force that is directed toward the center of a curved or circular path
14
Q
Law of conservation of momentum
A
- states that if no external forces act on a group of objects, their total momentum does not change
