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HScience🔬 > Physics Vocab > Flashcards

Physics Vocab Flashcards

Memorization

1
Q

Acceleration

A

(the rate at which an object is) speeding up, slowing down, or changing direction

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2
Q

Average speed

A

the overall Distance compared to the overall Time

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3
Q

Collision

A

the moment when two or more objects hit each other

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4
Q

Common units for acceleration

A

m/s/s, ft/s/s, mi/hr/s (meters per second squared, feet per second squared, miles per hour per second)

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5
Q

(common units for) density

A

g/mL, g/cm3 , or kg/m3

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6
Q

(common units for) DISTANCE

A

mm, cm, m, km, in, ft, mi (millimeter, centimeter, meter, kilometer, inch, foot, mile)

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7
Q

(common units for) mass

A

mg, g, kg (milligram, gram, kilogram)

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8
Q

(common units for) pressure

A

PSI or Pascal (Pounds per Square Inch; 1 Newton per Square Meter)

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9
Q

(common units for) speed

A

m/s, ft/s, mi/hr (meters per second, feet per second, miles per hour)

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10
Q

(common units for) TIME

A

s,min,hr

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11
Q

(common units for) weight

A

oz, lb, ton (ounces, pounds, tons)

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12
Q

Conduction

A

heat transfer by direct contact of particles of matter

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13
Q

Constant

A

a factor that is kept the same for all tests in an experiment (also called “controlled variable”)

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14
Q

convection

A

heat transfer by the upward movement of a fluid

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15
Q

Density

A

how much matter is packed into a given amount of space

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16
Q

dependent variable

A

the result of an experiment; the effect

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17
Q

distance

A

the amount of space between two points

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18
Q

Fluid

A

a substance that flows (liquids & gases)

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19
Q

force

A

a push or pull; something that causes a change in something else

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20
Q

force diagram

A

a simple diagram that shows the forces acting on an object as arrows that indicate the magnitude and direction of the force

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21
Q

Friction

A

a force that exists between any 2 pieces of matter that are in contact with each other

22
Q

Gravity

A

A force that pulls objects towards eachother

23
Q

how to make an ACCELERATION unit

A

any VELOCITY unit over any TIME unit

24
Q

how to make a SPEED unit

A

any DISTANCE unit over any TIME unit

25
Q

how to make a VELOCITY unit

A

any DISTANCE unit over any TIME unit, along with the Direction it is moving

26
Q

Independent Variable

A

the thing that is being tested in an experiment; the cause

27
Q

inertia

A

the tendency of an object to resist a change in motion

28
Q

Instantaneous speed

A

how fast an object is travelling at a certain point in time

29
Q

The Law of ACCELERATION is… (which law of motion?)

A

Newton’s 2nd Law

30
Q

The Law of ACTION and REACTION is… (which law of motion?)

A

Newton’s 3rd Law of Motion

31
Q

Law of Conservation of Energy

A

energy CANNOT BE created or destroyed - only CHANGED from one form to another

32
Q

Law of Conservation of Mass (matter)

A

mass (matter) cannot be created or destroyed in ordinary chemical and physical changes - only CHANGED from one form to another

33
Q

Law of Gravity

A

the scientific law that states every object in the universe attracts other objects, and that the strength of the attraction depends on mass and distance

34
Q

The Law of INERTIA is… (which law of motion?)

A

Newton’s 1st Law of Motion

35
Q

Mass

A

Amount of matter in an object or a material

36
Q

motion

A

a change in position

37
Q

Newton

A

Unit of FORCE; equal to the amount of force it takes to accelerate a 1 kg mass at an acceleration of 1 m/s/s

38
Q

Newton’s 1st Law of Motion

A

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.

39
Q

Newton’s 2nd Law of Motion

A

The acceleration of an object depends on the mass of the object and the amount of force applied. Force = Mass x Acceleration

40
Q

Newton’s 3rd Law of Motion

A

For every action, there is an equal and opposite reaction

41
Q

Position

A

Location of an object

42
Q

pressure

A

a pushing force that occurs in all directions; the amount of force exerted per unit area of a surface

43
Q

Prototype

A

a working model used to test a design concept by making actual observations and necessary adjustments

44
Q

Radiation

A

heat transfer by “rays” (electromagnetic waves)

45
Q

Source of error

A

anything in an experiment’s design, procedure, or analysis that can affect the accuracy of the data and/or investigation

46
Q

Speed

A

How fast something is moving

47
Q

/ (the FRACTION BAR means…)

A

For every or divided by

48
Q

velocity

A

how fast something is moving IN A PARTICULAR DIRECTION

49
Q

Volume

A

the amount of space an object or material takes up

50
Q

Weight

A

The measure of the gravitational pull on an object or material

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