Physics Definitions

Question 1

Measurement

Answer 1

the determination of the size or magnitude of something

Question 2

SI unit

Answer 2

the metric system that is used universally as a standard for measurements

Question 3

Newtons first law

Answer 3

An object at rest remains at rest, and an object in motion remains in motion at constant speed and in a straight line unless acted on by an unbalanced force

Question 4

Newtons second law

Answer 4

the acceleration of an object is directly related to the net force and inversely related to its mass

Question 5

Newtons third law

Answer 5

for every action (force) in nature there is an equal and opposite reaction

Question 6

Distance

Answer 6

measures the length between objects or points without regard for direction

Question 7

Direction

Answer 7

the location of something relative to something else

Question 8

Speed

Answer 8

The rate of change of position of an object in any direction

Question 9

Velocity

Answer 9

quantity that designates how fast and in what direction a point is moving

Question 10

Acceleration

Answer 10

the rate of change of velocity over a designated distance

Question 11

Freefall

Answer 11

any motion of a body where gravity is the only force acting upon it

Question 13

Time

Answer 13

the measure of a change in a physical quantity or a magnitude used to quantify the duration of events