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Exploring Motion's
Motion
| Question | Answer |
|---|---|
| Speed | is the rate of change in position |
| Instantaneous Speed | is the rate of motion at any given instant |
| Constant Speed | is the speed that does not vary or change |
| Average Speed | is the total distance traveled divided by the time of travel |
| Speed | only indicates how fast something is moving |
| Velocity | describes both speed and direction of an object |
| Acceleration | rate of change of velocity |
| Newton's First Law | an object at a constant velocity keeps moving at that velocity unless a net force acts on it. |
| Friction | is the force that opposes motion between two surfaces that are touching each other |
| Gravity | a force. every object in the universe exerts a force on every other objects |
| Weight | is the measure of the force of gravity |
| Newton | is the unit to describe the force exerted by weight |
| Force | is a push or pull one body exerts on another |
| Balanced Forces | forces on an object that are equal in size and opposite in direction |
| Net Force | always changes the velocity of an object |
| Inertia | is the tendency of an object to resist any change in motion |
| Newton's Second Law | a net force acting on causes the object to accelerate in the direction of the force |
| Gravity | causes all falling object to accelerate to the ground |
| amount of air resistance | depends on speed, size, shape, and density of an object |
| Terminal Velocity | is the highest velocity that will be reached by a falling object |
| Projectile | anything thrown or shot through the air |
| Horizontal Motion | motion across, side to side, parallel to the earth |
| Vertical Motion | motion downward, or perpendicular to the earth |
| centripetal acceleration | acceleration toward the center of a curved or circular path is called |
| Free-Falling | when an objects forces are balanced |
| Horizontal | across the earth |
| Vertical | up and down |
| Gravity | pull down on earth |
| Energy | do work |
| Kinetic Energy | motion energy |
| Gravitational Potential Energy | depends on height, weight, mass of object |
| Momentum | mass on the move |
| Law of conservation of momentum | momentum of object doesn't change |
| Elastic Potential Energy | energy obtained from a stretched or compressed object |