Enhanced Physics

Question 1

Any source or object which emits its own light is a —

Answer 1

Source of light

Question 2

Any object that gives off light of its own

Answer 2

Luminous light

eg. sun, stars

Question 3

An object that doesn’t emit light of its own or reflect light

Answer 3

Non-luminous light

eg. a book

Question 4

There are two types of sources of light

Answer 4

Natural and artificial sources of light

Question 5

It is emitting light because it is heated or is heated because its emitting light, these are called —–

Answer 5

Incandescent

eg. sun, torch

Question 6

these are living things that emit light without getting hot

Answer 6

bioluminescent

eg. fireflies, bioluminescent algae

Question 7

define non-incandescent.

Answer 7

These are light sources that are not incandescent or it gives off light without heating up.

eg. flourescent tubes and glow-in-the-dark objects

Question 8

These cannot emit their own light but reflects light from other luminous objects.

Answer 8

reflections/reflectable/reflections of light

eg. discoball, the moon

Question 9

what are the four fundamental forces of nature?

Answer 9

gravity, electromagnetism, strong and weak nuclear

Question 10

Types of interactions

what are the two types of interactions?

Answer 10

Contact and non-contact interaction

Question 11

types of interaction

give examples of contact forces

Answer 11

frictional force, tension force, normal force, air resistance force, applied force, and spring force

Question 12

types of interactions

give exampels of non-contact forces

Answer 12

gravitational force, electromagnetic force, and gravitational force

Question 13

Newton’s laws

“an object in motion will remain in motion, and an object at rest will remain at rest, unless acted upon a force” which law is this?

Answer 13

Law #1. Inertia

Question 14

Newton’s laws

The net force is the vector sum of all the forces that act upon an object. which law is this?

Answer 14

law #2

Question 15

Newton’s law

when all forces are balanced out, it becomes….

Answer 15

an equilibrium

Question 16

Newton’s laws

“For every action, there’s an equal but opposite reaction”

Answer 16

Law #3

If you excert force on an object, it exerts an equal force back at you

Question 17

These waves are a form of vibration, also known as transverse waves.

Answer 17

Electromagnetic waves

Question 18

Both the electric field and the magnetic wave in the electromagnetic waves oscillate (blank) to each other.

Answer 18

Perpendicular

Question 19

EM waves

what are the seven EM waves in order?

Answer 19

Radiowaves, Microwaves, Infrared, visible light, ultraviolet, X-rays, and gamma rays

Question 20

EM waves

All EM waves travel ata a speed of——

Answer 20

3 x 10^8 m/s

Question 21

EM waves

“as wavelength decreases, the frequency of the wave increases” as expressed in the equation—-

Answer 21

speed of light = wavelength x frequency

Question 22

EM waves

(blank) is the number of waves that pass a certain point in a specified amount of time.

Answer 22

v (speed of light)

One wave per second = hertz

Question 23

EM waves

defined as the distance mesured from one crest of a wave to another

Answer 23

Wavelength

Question 24

EM waves

Has the longest wavelength

Answer 24

Radiowaves

Question 25

# EM waves used to trasmit data such as AM and FM radio broadcasting, TV broadcasting, and satellite communication.

Answer 25

Radiowaves

Question 26

# EM waves Frequency is inversly proportional to the wavelength, slay or nayh?

Answer 26

Slay

Question 27

# EM waves used to cook food, radar, satellite, and cell phone communication

Answer 27

Microwaves

Question 28

# Em waves Classified as "near" and "far".

Answer 28

Infrared

Question 29

# EM waves Waves in the EM spectrum that humans can see, violet has the highest frequency, red has the lowest.

Answer 29

Visible light

Question 30

# Em waves They are germicidal, and are used to detect forged bank notes.

Answer 30

Ultraviolet

Question 31

# Em waves This is discovered by Wilhem Roentgen, and can penetrate soft tissues like skin and muscles

Answer 31

X-rays

Question 32

# Em waves Has the shortest waves but has the most energy, sometiems used in treating cancer and in taking detailed images for diagnostic medicine.

Answer 32

gamma rays

Question 33

# Em waves This device sends out short bursts of microwaves.

Answer 33

Radar

Question 34

# Em waves This scientist founded teh science of electromagnetic waves

Answer 34

Andrie Marie Ampere (1775-1836)

Question 35

# Em waves This scientist formualted the electromagnetic induction

Answer 35

Michael Faraday | (1791-1867)

Question 36

# Em waves They confirmed the existence of EM waves (frequency & wavelength)

Answer 36

Heinrich Hetz | (1857-1894)

Question 37

# Em waves They discovered the microwaves, the Em waves nature of light, and "Maxwell's Equation".

Answer 37

James Clerk Maxwell | (1831-1879)

Question 38

# Em waves They discovered that a current -carrying conductor produces a magnetic field

Answer 38

Hans Christian Oersted | (1777-1851)

Question 39

# Kineic and potential energy It is a kind of energy of an object that posesses dues to its motion.

Answer 39

Kinetic energy | it should have speed and mass

Question 40

# Kinetic and potential energy The faster an object, the more kinetic energy it has.

Answer 40

Speed

Question 41

# Kinetic and potential energy The more (Blank) it has, the more kinetic energy there will be.

Answer 41

Mass.

Question 42

It is the energy that is stored in an object due to its position or current condition.

Answer 42

Potential energy

Question 43

# Optics It is the change in direction of a wavefront at an interface.

Answer 43

Reflection

Question 44

# optics It is the change in direction of light ray as it passes from one medium to another.

Answer 44

Angle of refraction

Question 45

# optics It is the angle between a ray incident on a surface and the line perpendicular to the surface called the normal.

Answer 45

Angle of incident

Question 46

# optics it refracts parallel rays of light inwards to a single point.

Answer 46

Convex lens | ALso called as converging lens

Question 47

# optics It refracts parallel ways of light outwards \.

Answer 47

Concave lens

Question 48

# optics the length between the focal point to the lens

Answer 48

focal length

Question 49

# optics this forms if lightways come together in a certain point to form an image.

Answer 49

Real image

Question 50

# optics This is formed when the light rays don't come together where the image appears to be.

Answer 50

Virtual image

Question 51

# optics This lens is real, inverted, and makes images smaller

Answer 51

Convex lens

Question 52

# optics This lens is virtual, upright and images appear to be small

Answer 52

Concave lens

Question 53

Physical quantities that only has a magnitude but no direction

Answer 53

Scalar quantities

Question 54

Physical quantities with both a magnitude and a direction

Answer 54

Vector quntities