Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
PSQ3W3PHYS
NEWTON'S LAWS
| Question | Answer |
|---|---|
| Friction | resistance that an object encounters when moving over another object or surface. Lubrication systems in cars reduce the friction between components of the car. |
| Inertia | tendency to stay at rest or in constant motion in a straight line until some force acts upon it; an object’s inherent resistance to motion. Objects in space keep moving because they have large inertias and there is no friction in space. |
| Momentum | amount of motion of a moving body.The larger an object’s mass, the greater its inertia and the greater its momentum; calculated by multiplying an object’s velocity times the object’s mass |
| Net Forces | sum of the forces on an object.The net forces on a box sliding down a ramp include the normal force, the gravitational force, and the frictional force. |
| Newton’s 1st Law of Motion | A body at rest or in motion will continue on its course until a force acts upon it; sometimes called the law of inertia because it describes objects moving without forces. |
| Newton’s 2nd Law of Motion | An object will accelerate if a force is applied to it. The acceleration will depend on the amount of force and the mass of the object. F = m x a; only applies to unbalanced forces, because unbalanced forces produce acceleration. |
| Newton’s 3rd Law of Motion | “for every action there is an equal and opposite reaction.”When you push on a wall, the wall pushes back on you even if you can’t feel it. |
Created by:
Ruth.Miller
Popular Physical Science sets