Matter in Motion
Matter in Motion/Weathering
Work and Machines
Work and Machines
Energy and Energy Resources
100
the rate at which velocity changes over time an object accelerates if its need speed , direction or both changes
What is acceleration
100
a measure of the amount of matter in an object
What is Mass
100
a machine made of more than one simple machine
What is compound machine
100
The energy that an object has because of the position, shape, or condition of the object
What is potential energy
100
The capacity to do work
What is energy
200
a push or a pull exerted on an object in order to change the motion of the object
What is force
200
the distance traveled divided by the time interval during which the motion occurred
What is speed
200
a simple machine the consists of a bar that pivots at a fixed point called a fulcrum
What is lever
200
A simple machine that consists of an inclined plane wrapped around a cylinder
What is screw
200
A nonrenewable energy resource formed from the remains of organisms that lived long ago
What is fossil fuel
300
a force that oppose motion between two surfaces that are in contact
What is friction
300
the speed of an object in a particular direction
What is velocity
300
A simple machine that is a straight, slanted surface, which facilitates the raising of loads; a ramp
What is inclined plane
300
The unit used to express power; equivalent to joules per second
What is watt
300
The energy of an object that is due to the objects motion
What is kinetic energy
400
a force of attraction between objects that is due to their masses
What is Gravity
400
a measure of the gravitational force exerted on an object its value can change with the location of the object in the universe
What is weight
400
The ratio of output to input of energy or of power; it can be calculated by dividing work output by work input
What is mechanical efficiency
400
A simple machine consisting of two circular objects of different sizes
What is wheel and axle
400
A resource that forms at a rate that is much slower than the rate at which it is consumed
What is nonrenewable resource
500
an object's change in position relative to a reference point
What is Motion
500
the process by which rock materials are broken down by the action of physical or chemical processes
What is weathering
500
A simple machine that consists of a wheel over which a rope, chain, or wire passes
What is pulley
500
A simple machine that is made up of two inclined planes and that moves;often used for cutting
What is wedge
500
A natural resource that can be replaced at the same rate at which the resource is consumed
What is renewable resource
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