NY Regents Physics Exam Flashcards

Q: How many flashcards are in this NY Regents Physics set?

This set includes 50 original cards covering motion, forces, momentum, energy, thermal physics, waves, optics, electricity, circuits, modern physics, space-science evidence, investigations, engineering design, and reference-table use.

Q: What is the current NY Regents Physics exam format?

NYSED's Physical Science: Physics educator guide gives a range rather than one fixed count: 9-11 storyline clusters and 45-55 total questions, with about 60% multiple choice and 40% constructed response in a 3-hour session.

Q: Are reference tables provided on the NY Regents Physics exam?

Yes. Students use the 2025 Physical Science: Physics Reference Tables, along with permitted tools such as a scientific calculator, centimeter ruler, and protractor under school administration rules.

Q: Which content areas should students prioritize?

The largest official blueprint areas are Energy, Waves and Electromagnetic Radiation, and Forces and Interactions. Circuits, data analysis, reference-table use, and short evidence-based explanations should be practiced throughout review.

Q: Can students retake the NY Regents Physics exam?

Regents retakes occur through scheduled NYSED administrations and local school eligibility procedures. NYSED does not publish this exam as a simple fixed-day retake cycle like many computer-based certification exams.

Question 1

How should you start a cluster-based Regents Physics question?

Accepted Answer

Identify the physical system, the quantity asked for, and the evidence in the stimulus: graph, table, diagram, passage, or data. Then choose the model before substituting numbers.

Question 2

What do the Physics Reference Tables provide, and what do they not do for you?

Accepted Answer

They provide formulas, constants, units, prefixes, circuit rules, optics relationships, and spectrum information. They do not choose the correct model; the question context does that.

Question 3

Why are units a useful error check in Regents Physics calculations?

Accepted Answer

The final unit must match the quantity asked for. If a force answer is not in newtons or kg*m/s^2, or an energy answer is not in joules, the setup probably needs repair.

Question 4

What should a strong constructed response usually include?

Accepted Answer

State the model or equation, substitute values with units when needed, give the result with a unit or direction, and connect the result to the claim in the prompt.

Question 5

Average speed vs. average velocity: what is the difference?

Accepted Answer

Average speed uses total distance divided by time and is scalar. Average velocity uses displacement divided by time and includes direction, so path and final position matter.

Question 6

What does acceleration measure?

Accepted Answer

Acceleration is the rate of change of velocity. A change in speed, direction, or both means the object is accelerating, even if its speed stays constant in circular motion.

Question 7

On a position-time graph, what does slope represent?

Accepted Answer

Slope is change in position divided by change in time, so it represents velocity. A steeper line means a larger velocity magnitude; the sign gives direction.

Question 8

On a velocity-time graph, what do slope and area represent?

Accepted Answer

Slope represents acceleration. Area under the graph represents displacement, because velocity multiplied by time gives a change in position.

Question 9

At the top of a ball's upward flight, what are its velocity and acceleration?

Accepted Answer

Its velocity is momentarily zero, but its acceleration is still 9.8 m/s^2 downward near Earth's surface if air resistance is ignored.

Question 10

What is inertia, and what property measures it?

Accepted Answer

Inertia is resistance to a change in motion. Mass measures inertia: more mass requires more net force to produce the same acceleration.

Question 11

How do net force, mass, and acceleration relate?

Accepted Answer

Newton's second law is Fnet = ma. Acceleration points in the direction of the net force, not necessarily in the direction the object is moving.

Question 12

Mass vs. weight: what changes from planet to planet?

Accepted Answer

Mass is the amount of matter and stays the same. Weight is gravitational force, Fg = mg, so it changes when gravitational field strength changes.

Question 13

What makes two forces a Newton's third-law pair?

Accepted Answer

They are equal in magnitude, opposite in direction, occur in the same interaction, and act on different objects. They do not cancel because they are not on the same object.

Question 14

Which way does kinetic friction act?

Accepted Answer

Kinetic friction acts opposite the relative sliding motion between surfaces. It can slow an object and transform mechanical energy into thermal energy.

Question 15

Why are vector components useful?

Accepted Answer

Components split one vector into perpendicular parts, often horizontal and vertical. You can analyze each direction separately, then combine results when needed.

Question 16

What is the key idea in projectile motion when air resistance is ignored?

Accepted Answer

Horizontal and vertical motions are independent. Horizontal velocity stays constant, while vertical velocity changes due to the downward acceleration of gravity.

Question 17

What does momentum depend on?

Accepted Answer

Momentum is p = mv. It depends on both mass and velocity, so it is a vector quantity with direction.

Question 18

What is impulse, and how is it shown on a force-time graph?

Accepted Answer

Impulse equals change in momentum. On a force-time graph, impulse is the area under the curve, with units of N*s or kg*m/s.

Question 19

When is total momentum conserved?

Accepted Answer

Total momentum is conserved for an isolated system with no net external force. Individual objects can change momentum, but the system total stays constant.

Question 20

In uniform circular motion, where do velocity and acceleration point?

Accepted Answer

Velocity is tangent to the circle. Acceleration points toward the center because the direction of velocity is continually changing.

Question 21

How do inverse-square forces change with distance?

Accepted Answer

Gravitational and electric forces vary with 1/r^2. Doubling the distance makes the force one-fourth as large if the masses or charges stay the same.

Question 22

When does a force do work on an object?

Accepted Answer

A force does work when it causes displacement in the direction of the force component. For a constant force in the same direction as motion, W = Fd.

Question 23

Why does speed matter so much in kinetic energy?

Accepted Answer

Kinetic energy is KE = 1/2 mv^2, so speed is squared. Doubling speed makes kinetic energy four times as large if mass stays constant.

Question 24

What changes gravitational potential energy near Earth's surface?

Accepted Answer

The change in gravitational potential energy is mgh. Increasing mass, gravitational field strength, or height increases stored energy in the object-Earth system.

Question 25

How does spring potential energy depend on compression or stretch?

Accepted Answer

Spring potential energy is 1/2 kx^2. Because x is squared, doubling compression or stretch quadruples the stored elastic energy.

Question 26

What does power measure?

Accepted Answer

Power is the rate of energy transfer or work done over time, P = W/t. The unit watt means one joule per second.

Question 27

How should you handle energy conservation when friction or air resistance is present?

Accepted Answer

Total energy is still conserved, but some mechanical energy is transferred to thermal energy, sound, or the surroundings. Track the system and the energy leaving it.

Question 28

What does efficiency compare?

Accepted Answer

Efficiency compares useful output energy or power to total input: useful output divided by input, multiplied by 100%. It cannot exceed 100% for an ordinary device.

Question 29

What quantities are used in Q = mc change in T?

Accepted Answer

Thermal energy transferred equals mass times specific heat capacity times temperature change. A larger mass or specific heat needs more energy for the same temperature change.

Question 30

In an insulated calorimetry setup, how are heat lost and heat gained related?

Accepted Answer

Energy lost by the hotter object equals energy gained by the cooler object, ignoring losses to the container or surroundings. The final temperature is between the starting temperatures.

Question 31

What does specific heat capacity tell you?

Accepted Answer

It tells how much energy is needed to change one kilogram of a substance by 1 degree C. Lower specific heat means a larger temperature change for the same energy and mass.

Question 32

How do electric charges interact?

Accepted Answer

Like charges repel and opposite charges attract. The forces are equal in magnitude and opposite in direction, even if the charges have different amounts.

Question 33

What direction is an electric field defined to point?

Accepted Answer

An electric field points in the direction of the force on a positive test charge. A negative charge experiences force opposite the field direction.

Question 34

What does a compass deflection near a current-carrying wire show?

Accepted Answer

It shows that electric current produces a magnetic field around the wire. This is evidence linking electricity and magnetism.

Question 35

What condition is needed for electromagnetic induction?

Accepted Answer

A changing magnetic field through a coil can induce current. Moving a magnet, moving the coil, or changing the field can create the needed change.

Question 36

What does Ohm's law relate?

Accepted Answer

Ohm's law is V = IR. For a fixed resistance, increasing potential difference increases current; for a fixed voltage, increasing resistance decreases current.

Question 37

What stays the same and what adds in a series circuit?

Accepted Answer

Current is the same through every component. Resistors add directly, and the source voltage is divided among components.

Question 38

What stays the same and what adds in a parallel circuit?

Accepted Answer

Voltage is the same across each branch. Branch currents add to the total current, and the equivalent resistance is less than the smallest branch resistance.

Question 39

How should ammeters and voltmeters be connected?

Accepted Answer

An ammeter goes in series to measure current through a component. A voltmeter goes in parallel to measure potential difference across a component.

Question 40

Which relationships can calculate electrical power?

Accepted Answer

Common forms are P = VI, P = I^2R, and P = V^2/R. Choose the form that matches the circuit information given.

Question 41

How are wave speed, frequency, and wavelength related?

Accepted Answer

Wave speed is v = f times wavelength. In one medium, increasing frequency means wavelength decreases if speed stays constant.

Question 42

How are period and frequency related?

Accepted Answer

Frequency is cycles per second, measured in hertz. Period is time per cycle. They are reciprocals: f = 1/T and T = 1/f.

Question 43

Which electromagnetic waves have the greatest photon energy?

Accepted Answer

Photon energy is E = hf, so higher frequency means greater energy per photon. Gamma rays have higher photon energy than radio, infrared, or visible light.

Question 44

Reflection vs. refraction: what changes at a boundary?

Accepted Answer

Reflection is bouncing from a surface, with angle in equal to angle out. Refraction is bending as a wave changes speed entering a new medium.

Question 45

What image does a plane mirror form?

Accepted Answer

A plane mirror forms a virtual, upright image that appears behind the mirror and is the same size as the object.

Question 46

When is diffraction most noticeable?

Accepted Answer

Diffraction is strongest when a wave passes through an opening or around an obstacle similar in size to its wavelength.

Question 47

Why can digital signals resist accumulated noise better than analog signals?

Accepted Answer

Digital information uses discrete states, such as high and low. If the receiver can still distinguish the states, the signal can be regenerated and some noise can be removed.

Question 48

What does half-life describe?

Accepted Answer

Half-life is the time for half of the undecayed nuclei in a radioactive sample to decay. After two half-lives, one-fourth of the original sample remains.

Question 49

What does redshift in light from distant galaxies suggest?

Accepted Answer

Redshift means spectral lines are shifted to longer wavelengths. For distant galaxies, it is evidence that they are moving away and supports expansion of the universe.

Question 50

What makes investigation or engineering evidence strong?

Accepted Answer

Use controlled variables, repeated trials, relevant measurements, and a claim tied directly to data. A single observation or preference is weak evidence for a design decision.

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