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Semester 2 Finals Stusy Guides' Flashcards > Science SG Flashcards > Flashcards

Science SG Flashcards

1
Q

The maximum distance the particles of a medium move away from their resting position as waves travel through the medium.

A

Amplitude

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2
Q

Perception of a frequency of a sound.

A

Pitch

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3
Q

The continuous flow of electricity through a material.

A

Electric Current

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4
Q

Transverse wave that transfers electrical and magnetic energy.

A

Electromagnetic Wave

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5
Q

The tendency of an object to resist change in motion.

A

Inertia

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6
Q

Curved piece of glass or other transparent material that is used to diffract light.

A

Lens

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7
Q

The region around a magnet where the magnetic force is exerted.

A

Magnetic Field

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8
Q

Waves that require a medium to travel through.

A

Mechanical Wave

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9
Q

The bouncing back of an object or wave when it hits a surface it can’t pass through.

A

Reflection

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10
Q

The measurement of how difficult it is for charges to flow through a material.

A

Resistance

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11
Q

A device that allows you to do work in a way that is easier or more effective.

A

Machine

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12
Q

The measure of how hard it is to stop an object.

A

Momentum

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13
Q

Wave that moves the medium in a direction perpendicular to the direction in which the waves travel.

A

Transverse Wave

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14
Q

Perception of the energy of a sound.

A

Loudness

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15
Q

The reaction between waves that meet.

A

Interference

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16
Q

The difference between the two corresponding parts of the wave.

A

Wavelength

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17
Q

The number of complete waves that pass a given point per unit of time.

A

Frequency

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18
Q

Magnet that keeps it’s magnetism.

A

Permanent Magnet

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19
Q

Magnet that easily loses it’s magnetism.

A

Temporary Magnet

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20
Q

What is the magnetosphere?The region of Earth’s magnetic field shaped by the solar wind.

A

Magnetosphere?

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21
Q

How does the magnetosphere relate to the sun?

A

The solar wind comes from the Sun.

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22
Q

How does light that enters your eye perceive it as an image to the brain?

A

The cornea makes the image upside down. Rods and cones change the image into signals.

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23
Q

Name the waves in the electromagnetic spectrum in order of frequency.

A

Radio, Micro, Infrared, Visible, Ultraviolet, X-Ray, Gamma

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24
Q

Give a real-world example for each type of wave in the electromagnetic spectrum.

A

Radio, Microwave, Infrared Camera, Seeing, UV Lamps, X-Rays, Cancer Treatment

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25
Q

Explain what sound is, how it travels, and what type of wave it is.

A

Sound is a disturbance that travels through a medium as a longitudinal wave as a vibration

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26
Q

How are frequency and amplitude perceived by the ear?

A

Larger amplitude= louder sound

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27
Q

What does Ohm’s law state?

A

Resistance is equal to the voltage divided by the current

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28
Q

What metals are magnetic?

A

Iron, Nickel, Cobalt, Copper, Silver

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29
Q

What type of circuit?: One path; a bulb breaks, rest go out

A

Series circuit

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30
Q

What type of circuit?: Multiple paths; a bulb breaks, rest still work

A

Parallel Circuit

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31
Q

Force apllied to an object.

A

Applied Force

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32
Q

Force through a string, rope, cable, or wire when it is pulled tight by forces acting from opposite ends.

A

Tension Force

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32
Q

Force of Weight

A

Gravity

32
Q

Support force exerted upon an object that is in contact with another stable object.

A

Normal Force

32
Q

Force exerted by a surface as an object moves across it or makes an effort to move across it.

A

Friction Force

32
Q

Force that acts upon objects as they travel through the air.

A

Air Resistance Force

32
Q

Force exerted by a compressed or stretched spring upon any object that is attached to it.

A

Spring Force

32
Q

Explain what properties of a medium affect the speed of a sound.

A

Elasticity, Density, Temperature

32
Q

Mirror that consists of two convex lenses.

A

Refracting Telescope

33
Q

Mirror that uses a large concave mirror to gather light.

A

Reflecting Telescope

34
Q

An object will remain at rest, and an object moving at a constant velocity will continue moving at a constant velocity, unless it is acted upon by an unbalanced force.

A

Newton’s 1st Law of Motion

35
Q

Acceleration depends on the object’s mass and the net force acting on the object.

A

Newton’s 2nd Law of Motion

36
Q

If one object exerts a force on another object, then the second object exerts a force of equal strength in the opposite direction on the first object.

A

Newtons’s 3rd Law of Motion

37
Q

Attraction or repulsion of electric charges.

A

Electric Force

38
Q

What are the three ways electrons can be transferred?

A

Friction, Induction, Conduction

39
Q

What are the factors that determine the resistance of an electrical current?

A

What the material is made of, length, diameter, and temperature.

40
Q

Flat-sloped surface.

A

Inclined Plane

41
Q

Device that is thick at one end and tapers to a thin edge at the other end.

A

Wedge

42
Q

An inclined plane wrapped around a central cylinder.

A

Screw

43
Q

Simple machine made of two circular or cylindrical objects fastened together that rotate around a common axis.

A

Wheel & Axle

44
Q

Rigid bar that is free to pivot, or rotate, on a fixed point.

A

Lever

45
Q

Simple machine made of a grooved wheel with a rope or cable wrapped around it.

A

Pulley

46
Q

Reflection that occurs when parallel rays of light hit a smooth surface and all reflect at the same angle.

A

Regular Reflection

47
Q

Reflection that occurs when parallel rays of light hit a rough surface and reflect at different angles.

A

Diffuse Reflection

48
Q

Contracts and expands the pupil.

A

Pupil, Iris

49
Q

Refracts light to form an image.

A

Convex Lens

50
Q

Muscles that hold the lens in place.

A

Ciliary Muscles

51
Q

Change the image to signals.

A

Rods and Cones

52
Q

Transmits signal to the brain

A

Optic Nerve

53
Q

Funnels sound waves into the ear.

A

Outer Ear

54
Q

Transmits wave inward.

A

Middle Ear

55
Q

Formula for Work

A

Work = Force x Distance

56
Q

Formula for Power

A

Power = Work/Time

57
Q

Formula for Mechanical Advantage

A

Mechanical Advantage = Output Force/input Force

58
Q

Scientist that paved the way for Newton.

A

Galileo Galilei

59
Q

Proposed 3 laws of Motion

A

Isaac Newton

60
Q

Made a connection between the weight of displaced fluid and the buoyant force.

A

Archimedes

61
Q

When force is applied to a confined fluid, the change in pressure is transmitted equally to all parts of the fluid

A

Pascal

62
Q

Amp/Ampere is the unit rate of a current.

A

Andre-Marie Ampere

63
Q

Investigated resistance.

A

Geaorg Ohm

64
Q

Built the first electric battery.

A

Alessandro Volta

65
Q

Unit for Speed/Velocity

A

Meters/Second

66
Q

Unit for Acceleration

A

Meters/Seconds Squared

67
Q

Unit for Force

A

Newton

68
Q

Unit for Work

A

Joule

69
Q

Unit for Power

A

Watt

70
Q

Unit for Pressure

A

Pascal

71
Q

Unit for Frequency/Pitch

A

Hertz

72
Q

Unit for Resistance

A

Ohm

73
Q

Unit for Voltage

A

Volt

74
Q

Unit for Loudness

A

Decibel

75
Q

Unit for Current

A

Amp

Semester 2 Finals Stusy Guides' Flashcards (6 decks)

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