A change in position of an object in relation to a fixed reference point. Speed, velocity, and acceleration are sub-categories of this.
What is motion?
100
A push or a pull. This is always measured in Newtons.
What is force?
100
Newton's first law, that states that every object continues at a state of rest or keeps moving in a straight line, at a constant speed, unless acted upon by an unbalanced force.
What is Newton's Law of Inertia?
100
When an object is moved through a distance in the same direction as the applied force.
What is work?
100
Have few or no parts and the work is done with one basic motion.
What is a simple machine?
200
The change in position of an object during a certain unit of time.
What is speed?
200
When this is true, there is no change in motion.
What are balanced forces?
200
F=ma.
What is Newton's Second Law?
200
W=Fd
What is the formula for work?
200
The force applied to the machine by the user.
What is effort force (F sub e)?
300
Describes both speed and direction of the motion of an object.
What is velocity?
300
This produces a change in the speed or direction of motion.
What are unbalanced forces?
300
Whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the first object.
What is Newton's Third Law?
300
The rate at which work is done.
What is power?
300
The force applied by the machine to overcome the resistance, or weight of the object.
What is resistance force (F sub r)?
400
The change in velocity per a unit of time.
What is acceleration?
400
A force that opposes a motion between two surfaces that are in contact.
What is friction?
400
The relationship or trend between force and mass, while acceleration stays the same, or the opposite.
What is directly proportionate?
400
P=W/t
What is formula to calculate power?
400
Inclined planes, levers, pulleys, wheels and axles, wedges, and screws.
What are the six basic kinds of simple machines?
500
The formula for calculating speed.
What is S=D/T
500
The force of attraction between two objects, which is dependent on mass and distance.
What is gravity?
500
Acceleration is meters per second when force equals 100 Newtons and mass equals 25 grams.
What is 4 meters per second?
500
The units for work and power.
What are Jules and Watts, respectively?
500
A machine composed of two or more simple machines.