Državna Matura (North Macedonia) · Physics

Physics for State Matura

57 practice questions, each with the answer and an explanation.

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Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.

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In mechanics, a vehicle accelerates uniformly from rest at $2.5 m/s^{2}$ for $6 s$ . What is its final velocity?
In mechanics, how far does an object fall from rest in free fall after $3 s$ (taking $g = 9.8 m/s^{2}$ )?
In mechanics, what net horizontal force is required to accelerate an $800 kg$ car at $1.5 m/s^{2}$ ?
In mechanics, what is the weight of a $60 kg$ person on the surface of the Earth where $g = 9.8 m/s^{2}$ ?
In mechanics, what is the momentum of a $1200 kg$ automobile moving at $20 m/s$ ?
In mechanics, what work is done by a force of $50 N$ pushing a crate $8 m$ along the floor in the direction of the force?
In mechanics, what is the kinetic energy of a $2 kg$ projectile traveling at $30 m/s$ ?
In mechanics, what gravitational potential energy does a $5 kg$ object possess when raised $10 m$ ( $g = 9.8 m/s^{2}$ )?
In mechanics, what power is expended when a machine does $6000 J$ of work in $20 s$ ?
In mechanics, what centripetal force is required to keep a $1000 kg$ car turning a curve of radius $50 m$ at $10 m/s$ ?
In mechanics, how does the gravitational attraction between two point masses change if the distance between them is doubled?
In mechanics, what is the spring constant $k$ of a spring stretched $0.05 m$ by a hanging force of $10 N$ ?
In mechanics, what is the period of oscillation $T$ of a simple pendulum of length $L = 0.98 m$ ( $g = 9.8 m/s^{2}$ )?
In fluid mechanics, what buoyant force acts on an object displacing $0.02 m^{3}$ of water (density $1000 kg/m^{3}$ , $g = 9.8 m/s^{2}$ )?
In fluid mechanics, what is the hydrostatic pressure at a depth of $10 m$ in pure water ( $g = 9.8 m/s^{2}$ )?
In thermodynamics, what temperature on the Kelvin scale corresponds to $2 7^{\circ} C$ ?
In thermodynamics, how does the pressure of an ideal gas change if temperature is held constant and volume is halved?
In thermodynamics, what thermodynamic process occurs without any heat exchange with the surroundings ( $Q = 0$ )?
In thermodynamics, what process occurs at constant volume?
In thermodynamics, what is the maximum theoretical efficiency of a Carnot heat engine operating between $600 K$ and $300 K$ ?
In thermal physics, how much heat is needed to warm $2 kg$ of water from $2 0^{\circ} C$ to $5 0^{\circ} C$ ( $c = 4184 J/(kg \cdot K)$ )?
In thermodynamics, what statement summarizes the First Law of Thermodynamics?
In thermodynamics, what quantity always increases in irreversible spontaneous processes within an isolated system?
In electromagnetism, what is the electrostatic force between two charges of $+ 2 μ C$ and $+ 3 μ C$ separated by $1 m$ ( $k = 9 \times 1 0^{9} N \cdot m^{2} / C^{2}$ )…
In electrical circuits, what is the total equivalent resistance of three $6 Ω$ resistors connected in series?
In electrical circuits, what is the equivalent resistance of two $10 Ω$ resistors connected in parallel?
In electrical circuits, what current flows through a $24 Ω$ resistor connected across a $12 V$ battery?
In electrical circuits, what electrical power is dissipated in an appliance operating at $220 V$ drawing $5 A$ ?
In electrical circuits, what energy is stored in a $100 μ F$ capacitor charged to a potential difference of $20 V$ ?
In electromagnetism, what magnetic force acts on a $2 m$ wire carrying $3 A$ perpendicular to a $0.5 T$ magnetic field?
In electromagnetism, what is the magnetic Lorentz force on an electron ( $q = - 1.6 \times 1 0^{- 19} C$ ) moving parallel to a magnetic field?
In electromagnetism, which law states that an induced electromotive force opposes the change in magnetic flux that produces it?
In electromagnetism, what is the magnetic flux through a flat loop of area $0.04 m^{2}$ oriented perpendicular to a $0.2 T$ field?
In wave physics, what is the propagation speed of a sound wave with frequency $440 Hz$ and wavelength $λ = 0.75 m$ ?
In optics, what is the speed of light in a glass medium with a refractive index of $n = 1.5$ ( $c = 3 \times 1 0^{8} m/s$ )?
In optics, what optical phenomenon causes white light to split into a spectrum of colors when passing through a prism?
In optics, what condition is necessary for total internal reflection to occur at an interface?
In optics, what is the optical power in diopters of a thin converging lens with a focal length of $f = + 0.25 m$ ?
In optics, what type of image is formed by a plane mirror?
In wave physics, what wave behavior describes the bending and spreading of waves around obstacles and through narrow slits?
In wave physics, what apparent frequency shift occurs when a sound source moves toward a stationary observer?
In quantum physics, what is the energy of a photon of light with frequency $f = 5 \times 1 0^{14} Hz$ ( $h = 6.63 \times 1 0^{- 34} J \cdot s$ )?
In modern physics, what fundamental phenomenon demonstrated light behaving as discrete localized quanta (photons)?
In atomic physics, what occurs when an atomic electron transitions from an outer energy level to an inner lower energy level?
In nuclear physics, what particles compose an alpha ( $α$ ) particle?
In nuclear physics, what is emitted during negative beta ( $β^{-}$ ) radioactive decay?
In nuclear physics, what is the half-life of a radioactive isotope if its activity drops to $12.5%$ of its initial value in $18 days$ ?
In relativity physics, what equation describes the fundamental equivalence between rest mass and energy?
In nuclear physics, what nuclear process powers stars such as the Sun by combining light hydrogen nuclei into helium?
In modern physics, what particle carries the quantum of the electromagnetic interaction?
In mechanics, what physical quantity represents the rate of change of momentum over time?
In rotational mechanics, what rotational quantity is the rotational analogue of linear mass?
In wave physics, what type of wave is an electromagnetic wave in vacuum?
In electricity, what law relates the electric field flux through an enclosed closed surface to the net enclosed charge?
In thermal physics, what mode of heat transfer can propagate through a complete vacuum without requiring material particles?
In mechanics, what is the mechanical advantage of an ideal frictionless lever where effort arm is $1.2 m$ and load arm is $0.3 m$ ?
In mechanics, what is the SI unit of pressure?

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