0:02 ready for a physics challenge answer
0:04 these 50 questions and test your
0:07 knowledge let's do this before we start
0:10 please like this video And subscribe to
0:12 this channel for more exciting quizzes
0:14 like this and don't forget to comment
0:18 your score after the quiz first question
0:20 who presented the theory of relativity
0:29 Hawking it's letter A Albert Einstein
0:31 what type typ of lens is used in a
0:35 magnifying glass concave Plano concave or
0:41 convex
0:44 convex how many colors exist in sunlight
0:47 is it 5 7 or [Music]
0:53 nine it's
0:56 seven who was the first person to Define
1:04 [Music]
1:06 correct answer is
1:08 Galileo what happens to the weight of a
1:10 body at the equator if the Earth's
1:14 spinning speed increases increases
1:18 decreases or same it
1:21 decreases which color deviates the least
1:24 when passing through a prism blue green or
1:31 red it's the the color
1:34 red which color deviates the most when
1:45 Violet this time it's Violet what
1:47 happens to the momentum of an object if
1:51 its velocity is doubled tripled doubled or
1:57 quadrupled letter B doubled what is the
2:00 primary force that causes tides on Earth
2:03 gravitational force electromagnetic
2:06 force or nuclear
2:09 force it's the gravitational force what
2:13 type of wave is sound choose from letter
2:14 a to [Music]
2:21 c correct answer is letter C
2:24 longitudinal Lightyear is a unit of what
2:33 [Music]
2:36 length light from the Sun reaches the
2:37 Earth in how many [Music]
2:46 minutes it's 8
2:50 minutes Hertz is the SI unit of what
3:00 frequency it's frequency
3:02 the velocity of sound is highest in
3:11 water it's
3:14 metal what happens to the wavelength
3:18 when frequency increases increases
3:22 decreases or remains
3:24 constant it
3:26 decreases the cabin pressure of a flying
3:30 airplane is equal to outside lower than
3:34 outside or more than
3:36 outside it's lower than
3:38 outside what is the term for the
3:42 frictional force exerted by fluids up
3:49 drag it's
3:52 drag which is a bad thermal conductor
4:01 it's
4:04 glass the energy derived from the heat
4:07 of the earth is called what geothermal
4:12 energy solar energy or tidal
4:15 energy it's geothermal
4:17 energy what is the SI unit for magnetic
4:29 ampere it's Tesla next question which
4:31 law explain explains that an object at
4:33 rest stays at rest unless acted upon by a
4:40 force it's Newton's first law what is
4:52 Pascal it's
4:55 Pascal in which medium does light travel
5:06 it's letter C vacuum Which principle
5:08 explains the conservation of mechanical
5:11 energy in a closed system select from
5:18 c it's option b conservation of energy
5:30 approximately it's letter A
5:32 which scientist is known for the laws of
5:42 cernus it's
5:45 Kepler what does Young's modulus measure
5:56 energy correct answer is stiffness what
5:57 is the name of the constant that
6:00 represents the stiffness of a spring
6:05 hooks constant kulms or
6:08 boltzman it's hooks constant what is the
6:10 approximate value of gravitational
6:21 Earth correct answer is letter c a
6:22 region in a fluid where the flow
6:26 revolves around an axis is called Vortex
6:32 it's
6:35 Vortex what type of force keeps an
6:37 object moving in a circular path
6:42 gravitational force centripedal or
6:45 tension it's the centripedal
6:48 force Which principle explains why
6:51 objects float or sink in a fluid
6:55 Archimedes principle bernues or pascals
6:59 letter A Archimedes principle what is
7:02 the unit of electrical charge ampere
7:10 Jewel it's
7:13 kulum which of Newton's Laws explains
7:15 why we push the ground backward when we
7:20 walk forward first law second or
7:24 third it's the third law what phenomenon
7:27 causes an airplane to lift during flight
7:35 it's Bern's
7:37 principle what is the term for energy
7:40 stored in a stretched or compressed
7:44 object kinetic energy potential energy
7:48 or elastic energy it's elastic
7:50 energy what is the formula for kinetic
7:57 energy 2 mv^ 2 0.5 mv^ s or mv^
8:01 squ it's letter b
8:03 if the net force on an object is zero
8:06 the object is in what state motion
8:12 rest it's
8:15 equilibrium what term describes a change
8:25 Force it's
8:27 acceleration what is the SI unit of
8:37 Herz it's
8:41 Herz question 41 what is the process of
8:44 heat transfer by direct contact called
8:48 convection radiation or
8:50 conduction it's
8:52 conduction what is the speed of sound
8:56 and air at room temperature [Music]
9:03 it's letter
9:05 B what is the primary component of the
9:09 Earth's atmosphere nitrogen oxygen or carbon
9:15 dioxide
9:18 nitrogen what force opposes the motion
9:21 of an object through the air is it drag
9:28 thrust it's
9:31 drag what is is the unit of electrical
9:40 ohm it's
9:43 oh what is the term for the bending of
9:45 light as it passes from one medium to
9:50 another reflection refraction or
9:53 defraction it's
9:56 refraction which force acts to return an
9:58 oscillating object to its equilibrium
10:01 position magnetic force centrifugal
10:05 force or restoring Force it's restoring
10:08 Force which force holds the nucleus of
10:11 an atom together weak nuclear force
10:15 electromagnetic force or strong nuclear
10:19 force it's strong nuclear force what is
10:22 the formula for Ohm's [Music]
10:33 law it's V equal IR last question what
10:35 is the term for materials that do not
10:43 easily it's
10:46 insulators comment your scores below and
10:49 choose your next challenge don't forget
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