Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Co-op > Science Lab > Flashcards

Science Lab Flashcards

1
Q

The rate of change in velocity (increasing).

A

Acceleration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Substances that can donate hydrogen ions in a chemical reaction and measure as less than 7 on the pH scale.

A

Acids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Materials that change color with a change in pH.

A

Acid/Base Indicators

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Medications designed to relieve an upset stomach; they work by neutralizing the acid in one’s stomach with alkalinity.

A

Antacids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

States that the buoyant force of a fluid (gas or liquid, such as water) on an object as equal to the weight of the fluid displaced.

A

Archimedes’ Principle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

The amount of surface of an object.

A

Area

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Substances that accept hydrogen ions in a chemical reaction and measure as more than 7 on the pH scale.

A

Bases

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

A solution that resists change in a pH when small amounts of acids or bases are added.

A

Buffer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

An upward force.

A

Buoyant Force

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Calculated with mass times the change in object’s velocity; change in momentum depends on how large the force is exerted.

A

Change in momentum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

The force of friction divided by the force between the sliding surfaces involved.

A

Coefficient of Friction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

A new substance made of elements with can only be separated b chemical means.

A

Compound

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

A region in a longitudinal wave of increased air density cause by air molecules being pushed together; a region where molecules are pushed together.

A

Compression

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Describes a mirror or lens that curves inward.

A

Concave

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Describes a mirror or lens that curves outward.

A

Convex

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Materials that have less resistance to current than others; often used in electrical circuits.

A

Conductor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

A measure of the rate of flow of electrons.

A

Current (Amperes)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

The curve on a graph indicating the amount of material remaining during the process of nuclear decay of an item.

A

Decay Curve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

A reaction in which one substance is broken down to form two or more substances.

A

Decomposition Reaction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

A measurement of mass per unit of volume.

A

Density

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

A piece of transparent glass or metal with minutely spaced parallel lines scratched into its surface. These separate light into various colors, much like a prism would.

A

Diffraction Grating

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

The movement of one material through another material.

A

Diffusion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Separate into positive and negative ions; otherwise known as splitting into smaller ions/molecules/atoms.

A

Dissociate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Regions where the atoms magnetically align themselves, these regions are small magnets within a piece of metal.

A

Domains

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

A kind of chemical reaction.

A

Double Replacement

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

The work going into the activity.

A

Effort Work

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

A decomposition reaction where an electric current furnishes the energy needed to decompose one substance into two or more substances.

A

Electrolysis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Relating to magnetic fields or electric currents, specifically in relation to each other.

A

Electromagnetic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Negatively charged subatomic particles found in the outer regions of atoms.

A

Electrons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

The capacity for performing work, and has several forms that can be converted from one to another.

A

Energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

A scientific means of testing a hypothesis or proving something to be true or untrue.

A

Experiment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

Describes materials or substances that have electrons arranged in such a way that the individual atoms can act as very small magnets; these materials/substances are highly susceptible to magnetization.

A

Ferromagnetic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

The distance from the center of a lens or mirror to its focus.

A

Focal Length

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

Where waves or rays converge following refraction or reflection.

A

Focal Point

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

Something that can change an object’s motion, a push or pull.

A

Force

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

The force that resists motion when one material slides over another (present whenever there is motion).

A

Friction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

Stored energy an object has because of its position (height) and weight in a gravitational field.

A

Gravitational Potential Energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

The amount of time over which the radioactive element has changed half of itself.

A

Half-life

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

A special form of kinetic energy involving the random motion of atoms; thermal energy.

A

Heat

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

A mixture in which all of the components can be easily observed; each component is physically distinct.

A

Heterogeneous Mixture

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

A mixture in which all of the components are uniform and not easily identified.

A

Homogenous Mixture

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

Devices that can measure the densities of solutions/liquids by floating at different depths.

A

Hydrometers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q

A tentative explanation or answer to a question prompted by the observations of a phenomenon; part of the scientific method.

A

Hypothesis

44
Q

The reflection of an object.

A

Image

45
Q

The change of momentum experienced by an object that is caused by a force acting on said object; impulse is used to describe how momentum is changed.

A

Impulse

46
Q

The incoming light ray during reflection or refraction; ray of light that touches a surface to be reflected or refracted.

A

Incident Ray

47
Q

The energy of an object has due to motion.

A

Kinetic Energy

48
Q

An atom that does not have the same number of electrons or protons.

A

Ion

49
Q

Occurs because of the transfer of one more valence electrons from one atom valence electrons from one atom to another; ions are held together because they have positive and negative charges.

A

Ionic Bonding

50
Q

States that the total energy of a system is conserved (remains constant).

A

Law of Conservation of Energy

51
Q

A method of measurement that uses mathematics to calculate the size of something too large or too small to measure by conventional means.

A

Indirect Measurement

52
Q

States that the angle of incidence equals the angle of incidence equals the angle of reflection (the reflection always occurs so the light ray leaves the mirror at the same angle it strikes the mirror).

A

Law of Reflection

53
Q

Refers to a branch of mechanics that studies motion.

A

Kinematics

54
Q

A common indicator that is red in acidic solutions and blue in basic solutions.

A

Litmus

55
Q

The amount of matter in an object.

A

Mass

56
Q

The curve on the surface of a liquid in a tube.

A

Meniscus

57
Q

A wave that occurs when the motion of the wave is in the same direction as the motion of the particles in the material through which the wave moves; a wave that vibrates in the direction of the growth.

A

Longitudinal Wave

58
Q

A region surrounding a magnet that can influence another magnet or some metal objects; this is produced by spinning electrons within the atoms.

A

Magnetic Field

59
Q

Indicate the direction and strength of the magnetic field at any given point in the field; density or sparsity of the lines is used to communicate field strength.

A

Magnetic Lines

60
Q

A component that is opposed to a power source (batteries or generators), and consumes the electric power that source produces. Examples of electrical loads include appliances and lights.

A

Load

61
Q

Comprised of two or more substances that are not chemically combined; the compounds of a mixture can be separated if one knows their physical properties.

A

Mixture

62
Q

A layer that is one molecule thick.

A

Monolayer

63
Q

How quickly an object is moving. It can be calculated by dividing the distance traveled by the elapsed time.

A

Speed

64
Q

Comprised of sound waves with a melody, harmony, and rhythm; an “art of sound” that expresses emotion. Generally considered to be pleasing to the ear (which sets it apart from noise).

A

Music

65
Q

The distance from the force to the center of rotation.

A

Moment Arm

66
Q

The likelihood of a force to cause rotation.

A

Moment (Torque)

67
Q

A kind of chemical reaction.

A

Single Replacement

68
Q

A measure of the energy of electrons. (SI unit per charge).

A

Voltage (Volts)

69
Q

The charge of an ion when it has more electrons than protons.

A

Negative Charge

70
Q

Subatomic particles that lack electric charge; found in the nucleus of almost all atoms.

A

Neutrons

71
Q

Line perpendicular to the mirror surface or a transparent object.

A

Normal

72
Q

The process by which a radioactive element transforms itself into another element by emitting a particle from its nucleus; the duration of which depends on the half-life of the material involved.

A

Nuclear Decay (Radioactive Decay)

73
Q

What you view in the mirror during reflection (the image is its reflection) or what is viewed during refraction.

A

Object

74
Q

See/note/perceive something.

A

Observe

75
Q

Stored energy in an object, defined by its position in relation to some “zero” location.

A

Potential Energy

76
Q

A measure of the concentration of hydrogen ions in a solution on a scale of 0-14 (in which a measurement of 7 is neutral, a measurement less than 7 is acidic, and a measure greater than 7 is alkaline).

A

pH Scale

77
Q

The pole of a magnet is a region where the magnetic field is concentrated. North seeking and south-seeking poles are opposites, and attract each other, whereas like poles repel each other.

A

Pole

78
Q

The charge of an ion when it has fewer electrons than protons.

A

Positive Charge

79
Q

Describes the relationship between the current, voltage, and resistance. The law defines the relationship between the current, voltage, and resistance as: current equaling voltage divided by resistance.

A

Ohm’s Law (Created by George Ohm)

80
Q

The highness or lowness of a sound, determined by frequency, or number, of vibrations per second.

A

Pitch

81
Q

A procedure done in order to determine an answer, often to a research or research-type query.

A

Test

82
Q

An object’s speed in a certain direction.

A

Velocity

83
Q

A component of an electrical circuit that provides electricity.

A

Voltage Source

84
Q

A hypothesis which has been tested by experimentation and is supported by copious amounts of data.

A

Theor

85
Q

Defined as work performed per unit of time.

A

Power

86
Q

When a substance becomes solid and is deposited from a solution.

A

Precipitation

87
Q

The force per unit area.

A

Pressure

88
Q

Positively charged subatomic particles found in the nuclei of atoms.

A

Protons

89
Q

A simple machine that can increase a force, increase the distance over which force is applied, or change the direction of the force.

A

Pulley

90
Q

Elements that are unstable and emit particles or rays of energy from their nuclei in attempt to become stable, changing into another element.

A

Radioactive Elements

91
Q

The opposite of compression; density is reduced. In air, it is a region with decreased air density (air molecules are pulled apart).

A

Rarefraction

92
Q

The light ray that leaves the mirror or other surface during reflection.

A

Reflected Ray

93
Q

Devices that can change an applied force’s direction and/or magnitude. Examples include levers, inclined plans, and wedges, etc.

A

Simple Machines

94
Q

Patterns of disturbance that are generated when. air molecules are pushed together (compressed) by a vibrating object, and these molecules in turn push other molecules.

A

Sound Waves

95
Q

Change in a light’s direction after hitting a surface, such as a mirror.

A

Reflection

96
Q

The bending of light as it passes from one material to another material.

A

Refraction

97
Q

A dark or bright line in what would otherwise be a uniform and continuous stream.

A

Spectral Line

98
Q

Assuming there is no friction; the work exiting the pulley system in question is equal to the work going into it (effort work).

A

Resistance Work

99
Q

A reaction in which two or more substances combine to produce a new substance.

A

Synthesis Reaction

100
Q

The ratio of voltage to the current flowing through a circuit component or device. It is caused by all materials except superconductors; this is the impediment of the flow of electrical current.

A

Resistance (Ohms)

101
Q

Occurs when the motion of the wave is perpendicular to the motion of the particles in the material through which the wave moves.

A

Transverse Wave

102
Q

A combination of several indicators which changes the color over a range of pH values.

A

Universal Indicator

103
Q

SI units of power that are the equivalent of one joule per second.

A

Watts

104
Q

The force of gravity on an object.

A

Weight

105
Q

Exert a force through a distance; this is calculated by multiplying the movement of an object by the force being applied to it. If an object is not moved, no work has been done.

A

Work

Co-op (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions