The tendency of a moving object to keep moving in a straight line (not momentum, though similar)
What is "inertia"?
100
Electricity, sound, and heat are all actually types of this energy. (Not potential but...)
What is "kinetic energy"?
100
Chopsticks are made of this kind of machine
What are "levers"?
100
The ability to move or to change an object. (not work, though its flipside)
What is "energy"?
200
________includes both speed and direction
What is "velocity"?
200
The kind of force that causes an object to change its motion
What is an "unbalanced force"?
200
A form of kinetic energy that the sun emits
What is "light"?
200
You exert an ________ on the input side of a lever.
What is an "effort"?
200
Momentum takes into account (includes) both mass and _________.
What is "velocity"?
300
The speed of a car that travels 30 meters in 3 seconds
What is 10 meters per second?
300
A stationary object with a bunch of ________forces acting on it will not accelerate.
What is "balanced"?
300
Kinetic energy in the vibrations of particles. Found after friction
What is "heat"?
300
Two or more simple machines combined
What is a "compound machine"?
300
The way to increase friction
What is "rub the object on a rough surface", or "make the object heavier"?
400
The acceleration of a car that goes from 0 to 150 m/s in 5 seconds.
What is 30 m/s per second?
400
To increase the force of gravity felt between two objects, you want to _______(increase/decrease) the masses, and _________(increase/decrease) the distance
What is "increase the masses" and "decrease the distance"?
400
Energy in the position or structure of an object
What is "potential energy"?
400
Another term for a ramp.
What is an "inclined plane"?
400
The object being moved by a machine
What is "load"?
500
The measurement grid or collection of objects that you compare your object to when you want to measure motion or position.
What is a "frame of reference"?
500
Newton's third law.
What is, "for every action force, there is an equal but opposite reaction force"?
500
The law of conservation of energy, stated in full
What is "energy cannot be created or destroyed, it can only change form"?
500
The two classes of levers that have the pivot at one end instead of the middle
What are "2nd and 3rd class levers"?
500
The measure of how much useful work a machine puts out compared to the amount of work put into it.