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100
This is what is measured to see what the force of gravity on an object is.
What is weight?
100
A change in speed or direction of an object's motion.
What is acceleration?
100
The force of attraction between Earth and other objects.
What is gravity?
100
This is a push or a pull.
What is force?
100
The property of matter that keeps a moving object moving in a straight line.
What is inertia?
200
A force that acts between all masses and causes them to attract one another.
What is gravitation?
200
A force that resists motion, relative to each other, of objects that are touching.
What is friction?
200
The change of position during a unit of time.
What is speed?
200
The speed and direction of an object.
What is velocity?
200
This causes acceleration.
What is force?
300
The amount of matter.
What is mass?
300
The two things used to measure speed.
What are distance and time?
300
An an accelerator in an car can change this for the car.
What is velocity?
300
This is give off when friction happens.
What is heat?
300
This never changes no matter what the gravitational pull.
What is mass?