Show:
Simple Machines
Work and Power
Nature of Science
Motion
Forces
100
A rigid bar that is free to move around a fixed point.
What is lever?
100
This is a product of force and distance.
What is work?
100
This branch of science covers a broad range of subjects that covers non-living things in chemistry and physics.
What is physical science?
100
This is needed to describe motion completely and accurately.
What is a frame of reference?
100
For every action there is an equal and opposite reaction.
What is Newton's third law?
200
A fixed point a rigid bar moves around.
What is a fulcrum?
200
If there is none of this, there is no work.
What is movement?
200
The study of composition, structure, properties, and reactions of matter.
What is chemistry?
200
A car's speedometer gives you this measurement.
What is instantaneous speed?
200
The constant velocity of a falling object when the force of air resistance equals the force of gravity.
What is terminal velocity?
300
A simple machine that consists of two disks or cylinders, each one with a different radius, and a shaft that it rotates around.
What is wheel and axle?
300
A device that changes a force.
What is a machine?
300
A way of expressing a value as the product of a number between 1 and 10 and a power of 10.
What is scientific notation?
300
A vector, it is a description of both speed and direction of motion.
What is velocity?
300
When an unbalanced force acts on an object, the object does this.
What is accelerate?
400
An inclined plane wrapped around a cylinder.
What is a screw?
400
The input force acting through the input distance.
What is work input?
400
The ratio of an object's mass to its volume.
What is density?
400
The rate at which velocity changes.
What is acceleration?
400
An object in motion stays in motion.
What is Newton's first law, or the law of inertia?
500
A slanted surface along which a force moves an object to a different elevation.
What is an inclined plane?
500
The number of times that the machine increases an input force.
What is mechanical advantage?
500
An organized plan for collecting, organizing and communicating data.
What is the scientific method?
500
If no net force acts on a system, then the total momentum stays the same.
What is the law of conservation of momentum?
500
The powerful force of attraction that acts only on neutrons and protons holding them together.
What is nuclear force?