100 Physics Questions and Answers [Test]

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David Holt
100 Physics Questions and Answers [Test]

List of physics questions with which you can learn about laws, principles, formulas, the most important physics, movements, types of matter, radiation, atoms, waves, movements, magnitudes, collisions, gravity and much more.

Asking questions is one of the best ways to learn, as it can be done as a game and this makes it interesting and fun. In addition, it can be learned in a group, doing challenges with family or friends. You may also be interested in these biology questions or these science questions.

According to Newton's Second Law, to what is the force proportional?

Answer

To acceleration.

What kind of motion describes a body subjected to no force?

Answer

Describe a uniform motion.

Astronauts have a greater mass on earth than on the moon. True or false?

Answer

False, they have the same mass, but their weight varies since the gravitational force does too.

The faster you move do you gain more weight or less weight?

Answer

You gain more weight by going faster.

What does the first law of thermodynamics state?

Answer

It states that energy is neither created nor destroyed, instead, it is conserved

What is the name of the type of matter that does not emit any type of electromagnetic radiation?

Answer

Dark matter

What are the massless elementary particles that make up light called?

Answer

Photons.

How would the movement of the box be seen from a passenger on the plane??

Answer

It would be a straight line, the passenger would only appreciate the downward movement, but not the forward movement.

 

What charge do electrons have?

Answer

Negative charge.

By what physical principle does a washing machine work?

Answer

By centrifugation.

What is the unit of temperature in the international system of units?

Answer

The Kelvin (K).

According to the special theory of relativity, are there the present, past and future?

Answer

No, according to this theory the time periods are relative. I have one, you have another and someone on a planet in another galaxy has another.

What is the name of the radiation emitted by black holes?

Answer

Hawking radiation.

What kind of movement is represented in the image?

Answer

With the movement of the guitar strings the harmonic movement is represented.

What is mass times acceleration equal to?

Answer

Equals strength.

The kinetic energy of a body is due to its acceleration. True or false?

Answer

False, it is due to its speed.

Energy is the ability of a body to do what?

Answer

To do work.

Air pressure increases when the air is cold and humid. True or false?

Answer

True.

What forces are exerted between the figures in the image?

Answer

The forces of gravitational attraction.

The saying "everything that goes up must come down", is it true in outer space??

Answer

No, in outer space there is no up or down or the force of gravity to produce the movement.

What is the unit of mass in the international system?

Answer

The kilogram.

What are the physical quantities that can be expressed only with a number called?

Answer

They are called scalar magnitudes.

What branch of mechanics studies the conditions for a body to be in equilibrium?

Answer

Static.

How do two charges of different sign interact?

Answer

Attract.

Does the potential energy depend on the height?

Answer

Yes, the higher the altitude, the higher the potential energy of the body.

What kind of energy does the red sphere possess?

Answer

Potential energy, which can be converted into kinetic energy if it moves.

What particles are in the nucleus of the atom?

Answer

There are neutrons and protons, linked by very strong nuclear forces.

What kind of energy is illustrated in the image?

Answer

The elastic potential energy exerted by a spring.

What is the color that deviates the most when light passes through a prism??

Answer

The color violet, with a refractive index of 1.3428.

What is the highest speed recorded so far?

Answer

The speed of light.

According to Newton's Third Law. What corresponds to all action?

Answer

An equal and opposite reaction.

Newton's First Law states that a body will maintain its state of motion unless a force is applied to it. True or false?

Answer

True.

What is illustrated in the picture?

Answer

The refraction of light by a prism.

What kind of energy is manifested when lighting a match?

Answer

A luminous energy manifests.

What must two vector quantities meet to be parallel??

Answer

They must have the same address.

In the combustion of wood, heat energy cannot be manifested. True or false

Answer

False, yes it can manifest.

What is the unit of volume in the international system of units?

Answer

Cubic meter.

What are the physical quantities that have direction and sense called?

Answer

Vector quantities.

Do physical phenomena alter the internal structure of bodies?

Answer

No, they alter their external state in relation to space.

What Holds Intermolecular Forces Together?

Answer

They hold molecules together.

What is the young woman exercising in the box?

Answer

Is exerting a force.

Weight does not depend on body mass. True or false?

Answer

False, the weight depends on the mass of the body. The greater the mass, the greater the weight.

 Does the movement of a body vary according to the observer?

Answer

Yes, for example: the movement of a train is not the same for the one who sees it from the outside and the one who is inside.

What is the unit of force in the international system of units?

Answer

The Newton.

Who is this famous chemist?

Answer

Stephen Hawking, British Theoretical Physicist.

If a body is dropped from a certain floor, what force acts on it??

Answer

The gravitational force, which produces the downward motion.

Who postulated the theory of relativity?

Answer

Albert Einstein.

What type of lens is used in magnifying glasses?

Answer

Convex lenses.

What can be seen in the image?

Answer

A swinging pendulum.

Who was the first person to define the speed of a body?

Answer

Galileo Galilei, when studying the motion of bodies in an inclined field.

Which color deviates the least when light passes through a prism??

Answer

The color red, with a refractive index of 1.3308.

Do atoms have charges?

Answer

Atoms do not have charges, the positive charges of the protons are counteracted by the negative charges of the electrons.

The light year is a unit of ...

Answer

It's a unit of distance.

What kind of simple machine is illustrated in the picture?

Answer

A pulley, a mechanical device used to transmit a force .

What is the unit of pressure in the international system of units?

Answer

The pascal.

What physical magnitude is measured by the unit Hertz in the international system?

Answer

The frequency.

On what surface is the speed of sound fastest? In water, air, or metal?

Answer

.In metal, reaching a speed of 20,000 ft / s

What kinds of waves do submarines use underwater to navigate??

Answer

.They use ultrasonic waves

What kind of radiation has the longest waves?

Answer

.Radio waves, type of electromagnetic radiation

What simple machine is illustrated in the picture?

Answer

.The lever, a simple machine that exerts force and causes displacement

What is the study of physics applied to astronomy called?

Answer

.Astrophysics

According to the quantum theory of light, the energy of light is transported in small packages called ...

Answer

Photons.

What is the unit of measurement for the intensity of an electric field in the international system?

Answer

Newton per Coulomb (N / C).

What physical property of liquids is illustrated in the image?

Answer

Surface tension, a property that allows the cohesion of molecules on the surface of the liquid.

Can sound propagate in a vacuum?

Answer

It cannot, due to the absence of a medium in which to do so.

How many Kepler's laws describe the motion of the planets in the sky?

Answer

Three laws: The law of the orbit, the law of areas and the law of periods.

What is called the sound wave whose frequency is below that audible by the human ear?

Answer

Infrasonic wave, very common in animals with high auditory range.

What is the name of the device shown in the image?

Answer

Newton's pendulum.

What is the unit in the international system for measuring work and energy?

Answer

The Joule.

Charles's law is based on the behavior of liquids. True or false?

Answer

False, it is based on the behavior of gases.

What branch of physics studies the behavior and properties of light?

Answer

The optics.

When the forces applied to a body are balanced, the body is said to be in ...

Answer

The body is said to be in balance.

What is mainly due to the movement of the waves in the sea?

Answer

To the gravitational effect of the Moon on the Earth.

What physical principle forces the ink in a ballpoint pen to flow around its tip?

Answer

Capillarity, a property of fluids linked to their cohesion and surface tension.

Is density a vector magnitude?

Answer

No, it is a scalar quantity that is defined with a single number.

What is the physical magnitude of the change in velocity as a function of time?

Answer

Acceleration. An accelerated body varies its speed with time.

Who is this remarkable physicist?

Answer

Robert Oppenheimer, known as "the father of the atomic bomb".

What is the sum of the kinetic energy and the potential energy of a body called?

Answer

Mechanical energy.

If the earth stopped rotating the value of gravity would be reduced to zero. True or false?

Answer

False, it would be the same. Gravity is a property of the earth's mass.

What property of air alters the speed of sound?

Answer

Its temperature, the higher the temperature, the higher the speed of sound in air.

The eddy current is a physical phenomenon related to ocean tides. True or false?

Answer

False, it is a physical phenomenon related to electric current and magnetic fields.

What magnitude represents the amount of energy accumulated in a region?

Answer

Energy density.

The mass of a body is defined as the amount of matter that it contains. True or false?

Answer

True.

What color of light has the longest wavelength?

Answer

The color red, with a wavelength between 645 and 700 nanometers.

What branch of physics studies heat and its relation to work?

Answer

Thermodynamics.

What kind of waves are represented in the image?

Answer

Electromagnetic waves, composed of the two fields indicated in the figure.

What contact force is characterized by opposing the movement?

Answer

The friction force, which acts between two surfaces in contact.

Is velocity a vector magnitude?

Answer

Yes, since to define itself it is assigned a value, a direction and a sense.

How many fundamental quantities does physics possess?

Answer

7 fundamental quantities: time, length, mass, temperature, light intensity, amount of substance and current intensity.

What branch of physics studies sound, infrasound and ultrasound?

Answer

Acoustics.

What is the name of the magnetic body shown in the picture?

Answer

Magnet.

Who is known as the father of quantum theory?

Answer

German physicist Max Planck.

How many types of acceleration are there in circular motion?

Answer

Two types, tangential acceleration and centripetal acceleration.

What formula in physics tells us about the equivalence between mass and energy?

Answer

E equals mass times the square of the speed of light (E = mc2). Hence, a tiny amount of matter, if completely converted into energy, generates a huge force..

What is the force that the rope exerts on the girl called?

Answer

It's called tension, and it keeps the girl from falling. If there was no tension then the girl would fall due to her weight.

How many types of collisions (or collisions) are known in physics?

Answer

Two types of collisions: elastic collisions and inelastic collisions.

How do you know the line that describes the movement of a mobile?

Answer

It is known as trajectory.

To what type of motion is the angular velocity attributed?

Answer

To circular motion.

What is the value of the earth's gravity?

Answer

Its value is 9.8 m / s2, and it is normally taken as 10 m / s2.

The movement of charges through a conductor is called an electric current. True or false?

Answer

True.


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