Ch 1
Ch 2
Ch 3
Ch 4-5
Ch 5
100
Tests the effects of one thing on another using controlled conditions.
What is experiment
100
How far an object has moved.
What is distance
100
The force that opposes the sliding motion of two surfaces that are touching each other.
What is friction
100
A machine made of two or more simple machines.
What is company machine
100
An inclined plane with one or two sloping sides.
What is wedge
200
A statement about what happens in nature and that seems to be true all the time.
What is scientific law
200
The speed of an object and the direction of its motion.
What is velocity
200
An attractive force between any two objects that depends on the masses of the objects and the distance between them.
What is gravity
200
Ratio of the output force to input force of a machine.
What is mechanical advantage
200
A bar that is free to pivot or turn around a fixed point.
What is lever
300
An explanation of things or events based on knowledge.
What is theory
300
The rate of change in velocity.
What is acceleration
300
Opposes the motion of objects that move through the air.
What is air resistance
300
A measure of how much of the work put into a machine is changed into useful output work by the machine.
What is efficiency
300
An inclined plane wrapped in a spiral around a cylindrical post.
What is screw
400
To investigate or study by close examination.
What is observation
400
The direction an object is moving.
What is motion
400
The product of an objects mass and velocity.
What is momentum
400
A machine that works with only one movement.
What is simple machine
400
A system of pulleys consisting of fixed and movable pulleys.
What is block and tackle
500
An exact quantity that people agree to use to compare measurements.
What is standard
500
The tendency of an object to resist any change in its motion.
What is inertia
500
The amount of matter in an object.
What is mass
500
The force applied to a machine to do work.
What is effort force
500
A sloping surface.
What is inclined plane
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