Chapter 12 Flashcards Preview

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Flashcards in Chapter 12 Deck (22):
1

Newton

Force that causes 1-kilogram mass to accelerate at the rate 1m/s each second

2

Net force

Overall force acting on an object after all the forces are combined

3

Friction

Force that opposes the motion of objects that touch as they move past each other

4

Static friction

Friction that acts on objects that are not moving

5

Sliding friction

Friction that opposes the direction of motion an object as it slides over a surface

6

Rolling friction

Friction that acts on rolling objects

7

Fluid friction

Friction that opposes the motion of an object through a fluid

8

Air resistance

Fluid friction acting on an object moving through the air

9

Gravity

Force that acts between two masses

10

Terminal velocity

Constant velocity of a falling object when the force of air resistance equals the force of gravity

11

Projectile motion

Motion of a falling object after it is given an initial forward velocity

12

Inertia

Tendency of an object to resist change in it's motion

13

Mass

Measure of the inertia of an object and spends on the amount of matter the object contains

14

Weight

Measure of the force of gravity acting on an object

15

Momentum

Product of an object's mass and its velocity

16

Law of conservation of momentum

If no net force acts on a system, the the total momentum of a system does not change.

17

Electromagnetic force

Associated with charged particles

18

Strong nuclear force

Powerful force of attraction that acts only on neutrons and protons in nucleus, holding them together

19

Weak nuclear force

Attractive force that acts only over a short range

20

Gravitational force

Attractive force that acts between any two masses

21

Centripetal force

Center-directed force that continuously changes the direction of an object to make it move in a circle

22

Force

A push or pull that acts on an object