June 2024 Physics Regents Questions 31-40 Question Preview (ID: 63456)

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An observer standing behind the wall is able to hear the sound. This spreading out of the sound wave as it passes through the opening is an example of

a) interference

b) reflection

c) refraction

d) diffraction

A sound wave is emitted by a vibrating tuning fork. What is transferred as the sound wave travels to a student’s ear?

a) mass, only

b) energy, only

c) both mass and energy

d) neither mass nor energy

An electric current passing through a copper wire at constant temperature would result in

a) an increase in the resistivity of the wire

b) a decrease in the resistivity of the wire

c) the emission of protons from the wire

d) the production of a magnetic field around the wire

The velocity of an object in uniform circular motion has a

a) constant magnitude and changing direction

b) constant magnitude and constant direction

c) changing magnitude and constant direction

d) changing magnitude and changing direction

Tuning fork A starts to vibrate at 320 hertz when it is held near tuning fork B, already vibrating at 320 hertz. Which phenomenon is exemplified by the action of tuning fork A?

a) the Doppler effect

b) resonance

c) diffraction

d) refraction

A light ray with a frequency of 5.09 × 10^14 hertz has a wavelength of 2.44 × 10^–7 meter in diamond. The wavelength of this light ray in sodium chloride is

a) 1.55 × 10^–7 m

b) 2.44 × 10^–7 m

c) 3.83 × 10^–7 m

d) 5.89 × 10^–7 m

The current flowing through resistor R3 is

a) 5.0 A

b) 2.0 A

c) 0.50 A

d) 0.20 A

A charge of 25 coulombs moves past a point in a circuit in 2.5 seconds. What is the current at that point in the circuit?

a) 0.10 A

b) 10. A

c) 50. A

d) 63 A

Which statement describes an object with constant kinetic energy?

a) A car accelerates along a straight road.

b) A runner decreases her speed along a curved path.

c) A bicycle travels around a curve at constant speed.

d) A sled travels down a frictionless, steep, straight hill.

Which phrase describes a box in equilibrium?

a) box in an elevator slowing down as it rises vertically

b) box at rest on a stationary table

c) box sliding down a frictionless ramp

d) box in free fall

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