Motion
forces and motion
Work and Energy
Simple machines
Random
100
What is position?
The location of an object
100
What is a force?
any push or pull from one object to another
100
What's work?
The measurement of the energy used to perform a task
100
What's a simple machine?
A machine that takes one force to change it's object
100
What's acceleration?
The change in velocity over time
200
What is motion?
Change in position over time
200
What is friction?
The force that opposes the motion from one object moving past another
200
What's potential energy?
Energy that is stored
200
What's effort?
The force you apply to a machine
200
What's momentum? The product of mass multiplied by energy
The product of mass multiplied by energy
300
What is frame of reference?
A group of objects which you can measure a position or motion
300
What's balanced forces?
When forces act on an object without changing it's motion
300
what's energy?
The ability to perform work
300
What's load the object moved by an output
the object moved by an output
300
What's an action force?
When you push the first object to the second one
400
What is speed?
How fast an object's position changes
400
What's unbalanced forces?
when you change an object's movement
400
What's kinetic energy?
The energy of a moving object?
400
What's fulcrum?
A lever bar that rotates around a pivot point
400
The steeper your path is the more force it takes you to climb true or false?
true
500
What is velocity?
The measurement that combines both the speed and the direction of a moving object
500
What is a reaction force?
When you push the second object back to the first one
500
What's law of conservation of energy?
That energy can only change form
500
What's efficiency The ratio of input energy to output work
The ratio of input energy to output work
500
What's a compound machine
Two or more simple machines that are combined
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