Science SG

Question 1

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

Answer 1

Amplitude

Question 2

Perception of a frequency of a sound.

Answer 2

Pitch

Question 3

The continuous flow of electricity through a material.

Answer 3

Electric Current

Question 4

Transverse wave that transfers electrical and magnetic energy.

Answer 4

Electromagnetic Wave

Question 5

The tendency of an object to resist change in motion.

Answer 5

Inertia

Question 6

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

Answer 6

Lens

Question 7

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

Answer 7

Magnetic Field

Question 8

Waves that require a medium to travel through.

Answer 8

Mechanical Wave

Question 9

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

Answer 9

Reflection

Question 10

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

Answer 10

Resistance

Question 11

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

Answer 11

Machine

Question 12

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

Answer 12

Momentum

Question 13

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

Answer 13

Transverse Wave

Question 14

Perception of the energy of a sound.

Answer 14

Loudness

Question 15

The reaction between waves that meet.

Answer 15

Interference

Question 16

The difference between the two corresponding parts of the wave.

Answer 16

Wavelength

Question 17

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

Answer 17

Frequency

Question 18

Magnet that keeps it’s magnetism.

Answer 18

Permanent Magnet

Question 19

Magnet that easily loses it’s magnetism.

Answer 19

Temporary Magnet

Question 20

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

Answer 20

Magnetosphere?

Question 21

How does the magnetosphere relate to the sun?

Answer 21

The solar wind comes from the Sun.

Question 22

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

Answer 22

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

Question 23

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

Answer 23

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

Question 24

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

Answer 24

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

Question 25

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

Answer 25

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

Question 26

How are frequency and amplitude perceived by the ear?

Answer 26

Larger amplitude= louder sound

Question 27

What does Ohm’s law state?

Answer 27

Resistance is equal to the voltage divided by the current

Question 28

What metals are magnetic?

Answer 28

Iron, Nickel, Cobalt, Copper, Silver

Question 29

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

Answer 29

Series circuit

Question 30

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

Answer 30

Parallel Circuit

Question 31

Force apllied to an object.

Answer 31

Applied Force

Question 32

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

Answer 32

Tension Force

Question 32

Force of Weight

Answer 32

Gravity

Question 32

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

Answer 32

Normal Force

Question 32

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

Answer 32

Friction Force

Question 32

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

Answer 32

Air Resistance Force

Question 32

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

Answer 32

Spring Force

Question 32

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

Answer 32

Elasticity, Density, Temperature

Question 32

Mirror that consists of two convex lenses.

Answer 32

Refracting Telescope

Question 33

Mirror that uses a large concave mirror to gather light.

Answer 33

Reflecting Telescope

Question 34

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.

Answer 34

Newton's 1st Law of Motion

Question 35

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

Answer 35

Newton's 2nd Law of Motion

Question 36

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.

Answer 36

Newtons's 3rd Law of Motion

Question 37

Attraction or repulsion of electric charges.

Answer 37

Electric Force

Question 38

What are the three ways electrons can be transferred?

Answer 38

Friction, Induction, Conduction

Question 39

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

Answer 39

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

Question 40

Flat-sloped surface.

Answer 40

Inclined Plane

Question 41

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

Answer 41

Wedge

Question 42

An inclined plane wrapped around a central cylinder.

Answer 42

Screw

Question 43

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

Answer 43

Wheel & Axle

Question 44

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

Answer 44

Lever

Question 45

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

Answer 45

Pulley

Question 46

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

Answer 46

Regular Reflection

Question 47

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

Answer 47

Diffuse Reflection

Question 48

Contracts and expands the pupil.

Answer 48

Pupil, Iris

Question 49

Refracts light to form an image.

Answer 49

Convex Lens

Question 50

Muscles that hold the lens in place.

Answer 50

Ciliary Muscles

Question 51

Change the image to signals.

Answer 51

Rods and Cones

Question 52

Transmits signal to the brain

Answer 52

Optic Nerve

Question 53

Funnels sound waves into the ear.

Answer 53

Outer Ear

Question 54

Transmits wave inward.

Answer 54

Middle Ear

Question 55

Formula for Work

Answer 55

Work = Force x Distance

Question 56

Formula for Power

Answer 56

Power = Work/Time

Question 57

Formula for Mechanical Advantage

Answer 57

Mechanical Advantage = Output Force/input Force

Question 58

Scientist that paved the way for Newton.

Answer 58

Galileo Galilei

Question 59

Proposed 3 laws of Motion

Answer 59

Isaac Newton

Question 60

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

Answer 60

Archimedes

Question 61

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

Answer 61

Pascal

Question 62

Amp/Ampere is the unit rate of a current.

Answer 62

Andre-Marie Ampere

Question 63

Investigated resistance.

Answer 63

Geaorg Ohm

Question 64

Built the first electric battery.

Answer 64

Alessandro Volta

Question 65

Unit for Speed/Velocity

Answer 65

Meters/Second

Question 66

Unit for Acceleration

Answer 66

Meters/Seconds Squared

Question 67

Unit for Force

Answer 67

Newton

Question 68

Unit for Work

Answer 68

Joule

Question 69

Unit for Power

Answer 69

Watt

Question 70

Unit for Pressure

Answer 70

Pascal

Question 71

Unit for Frequency/Pitch

Answer 71

Hertz

Question 72

Unit for Resistance

Answer 72

Ohm

Question 73

Unit for Voltage

Answer 73

Volt

Question 74

Unit for Loudness

Answer 74

Decibel

Question 75

Unit for Current

Answer 75

Amp