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Chp 13 - Motion

QuestionAnswer
Type of motion the Earth has as it moves around the sun. Constant Motion
type of motion cars, trucks, and buses have when they move in many directions and at many speeds. Variable Motion
type of motion a pendulum has when it swings back and forth Periodic Motion
type of motion a wheel has when it spins around on an axle. Circular Motion
type of motion a rubberband has when you pluck it. Vibrational Motion
describes the speed and direction of an object's motion. Velocity
describes how far an object moves during a certain amount of time. Avg Speed = Distance / Time Average Speed
Any push or pull that acts on an object Force
four types of forces gravity, magnetism, electricity, friction
type of force that acts to slow down the motion of an object or keep it from starting to move. Friction
formula for calculating work work = force x distance
formula for calculating power power = work / time
joules label for work
watts label for power
all the forces acting on an object balance each other equilibrium
tendancy of an object to resist any change in motion. inertia
An object at rest stays at rest and an object in motion stays in motion until acted upon by an outside force. Newton's First Law of Motion
Describes how acceleration, mass, and net force are related Newton's Second Law of Motion
For every action, there is an equal and opposite reaction Newton's Third Law of Motion
When the fan on an airboat turns, it pushes air behind the boat, in turn, the air pushes the boat forward. Third Law of Motion
The greater the mass the greater the force needed to move the object. Second Law of Motion
A stationary ball will remain still until an outside force (like someone kicking it) moves it First Law of Motion
a device that changes the direction or amount of force needed to do work. Machine
four types of simple machines Lever, Inclined Plane, Wheel and Axel, and Pulley
a machine that uses two or more simple machines Complex Machines
the rate at which work is done Power
the rate at which velocity changes Acceleration
Created by: lachapellt
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