physics unit 1 Test
Enter the letter for the matching Definition
| A. a law stating that every time one object exerts a force on another object, the second object exerts a force that is equal in size and opposite in direction back on the first object.
B. a law stating that the acceleration of an object increases with increased force, and decreases with increasing mass.
C. the number of occurrences of a repeating event per unit of time.
D. The ability to do work or to cause a change.
E. A rule describing a relationship that always works in the same way under the same conditions.
F. a statement that the values of two math expressions are equal (indicated by the sign =).G. the belief that the Earth is at the center of the Universe.
H. energy is neither created nor destroyed but transformed and transferred from one form to another.
I. movement back and forth at a regular speed
J. the amount of momentum does not change in a system as long as there is no outside force acting on that system.
K. A force that resists the motion between two surfaces in contact.
L. the number of waves that pass a fixed point in unit timeM. the distance from the resting position to the top of a crest or to the bottom of a trough.
N. the idea that the observation of motion depends on the observer.
O. a speed in a specific direction.P. Any force that keeps an object moving in a circle.
Q. the belief that the Sun is at the center of the Universe
R. a measure of mass in motion.
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