June 2019 Physics Regents Questions 1-10 Question Preview (ID: 59784)

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Which pair of quantities represent scalar quantities?

a) displacement and velocity

b) displacement and time

c) energy and velocity

d) energy and time

A sailboat on a lake sails 40. meters north and then sails 40. meters due east. Compared to its starting position, the new position of the sailboat is

a) 40. m due east

b) 40. m due north

c) 57 m northeast

d) 80. m northeast

A ball is thrown straight upward from the surface of Earth. Which statement best describes the ball’s velocity and acceleration at the top of its flight?

a) Both velocity and acceleration are zero.

b) Velocity is zero and acceleration is nonzero.

c) Velocity is nonzero and acceleration is zero.

d) Both velocity and acceleration are not zero.

As a student runs a plastic comb through her hair, the comb acquires a negative electric charge. This charge results from the transfer of

a) protons from the comb to her hair

b) protons from her hair to the comb

c) electrons from the comb to her hair

d) electrons from her hair to the comb

How would the mass and weight of an object on the Moon compare to the mass and weight of the same object on Earth?

a) Mass and weight would both be less on the Moon.

b) Mass would be the same but its weight would be less on the Moon.

c) Mass would be less on the Moon and its weight would be the same.

d) Mass and weight would both be the same on the Moon.

An object is moving with constant speed in a circular path. The object’s centripetal acceleration remains constant in

a) magnitude, only

b) direction, only

c) both magnitude and direction

d) neither magnitude nor direction

The horizontal component of the force acting on the crate is

a) 19 N

b) 41 N

c) 210 N

d) 450 N

A spring with a spring constant of 68 newtons per meter hangs from a ceiling. When a 12-newton downward force is applied to the free end of the spring, the spring stretches a total distance of

a) 0.18 m

b) 0.59 m

c) 5.7 m

d) 820 m

As a student walks downhill at constant speed, his gravitational potential energy

a) increases and his kinetic energy increases

b) increases and his kinetic energy remains the same

c) decreases and his kinetic energy increases

d) decreases and his kinetic energy remains the same

When 150 joules of work is done on a system by an external force of 15 newtons in 20. seconds, the total energy of that system increases by

a) 1.5 x 10^2 J

b) 20 x 10^2 J

c) 3.0 x 10^2 J

d) 2.3 x 10^2 J

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