Ch 1
Ch 2
Ch 3
Ch 4
Ch 5
100
Studying the effect of one thing on another in order to test a hypothesis is an
What is experiment
100
Newton's first law of motion is also called the law of
What is inertia
100
The force that a poses motion when two forces are touching
What is friction
100
A device that does not work with only one movement
What is simple machine
100
An inclined plane with one or two slopping sides forms a machine called
What is wedge
200
A rule or principle that describes what happens in nature is a
What is scientific law
200
A change in position
What is motion
200
An attractive force btw 2 objects that depend on masses of the objects and the distance btw them
What is gravity
200
A ratio of resistance force to effort force
What is mechanical advantage
200
A bar that is free to pivot about a fixed point is
What is lever
300
An explanation of an event that is based on repeated observations and experiments is a
What is theory
300
How far an object has moved
What is distance
300
Opposes the motion of objects that move through the air
What is air resistance
300
A device made up of more than one simple machine
What is compound machine
300
An inclined plane wrapped around a cylindrical post is
What is screw
400
The process of gathering information through the senses is called
What is observation
400
The speed and direction at which an object moves
What is velocity
400
Objects mass plus velocity
What is momentum
400
Work output of a machine divided by the work input
What is efficiency
400
An arrangement of pulleys designed to reduce the effort force is called
What is block and tackle
500
The exact quantity people agree to use for comparison
What is Standard
500
A rate of change of velocity
What is acceleration
500
Amount of matter in an object
What is mass
500
The force you apply to a simple machine
What is effort force
500
A slanted surface used to raise an object is an
What is inclined plane
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