June 2018 Physics Regents Questions 11-20 Question Preview (ID: 59800)

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Which arrow represents the direction of the frictional force acting on the box?

a) A

b) B

c) C

d) D

Which diagram represents the directions of the velocity, v, and acceleration, a, of a toy car as it moves in a clockwise, horizontal, circular path at a constant speed?

a) 1

b) 2

c) 3

d) 4

If the magnitude of the electrostatic force exerted on the particle is 3.0 × 10^–3 newton, what is the charge of the particle?

a) 1.6 × 10^–19 C

b) 1.5 × 10^–6 C

c) 6.0 C

d) 6.7 × 10^5 C

The magnitude of the gravitational field strength near Earth’s surface is represented by

a) Fg/m

b) G

c) mg

d) Gm1m2/r^2

A car engine supplies 2.0 × 10^3 joules of energy during the 10. seconds it takes to accelerate the car along a horizontal surface. What is the average power developed by the car engine while it is accelerating?

a) 2.0 × 10^1 W

b) 2.0 × 10^2 W

c) 2.0 × 10^3 W

d) 2.0 × 10^4 W

Which forces can be either attractive or repulsive?

a) gravitational and magnetic

b) electrostatic and gravitational

c) magnetic and electrostatic

d) gravitational, magnetic, and electrostatic

Compared to the resistivity of a 0.4-meter length of 1-millimeter-diameter copper wire at 0°C, the resistivity of a 0.8-meter length of 1-millimeter-diameter copper wire at 0°C is

a) one-fourth as great

b) one-half as great

c) the same

d) four times greater

The work per unit charge required to move a charge between two points in an electric circuit defines electric

a) force

b) power

c) field strength

d) potential difference

The current through the wire is

a) 0.20 A

b) 0.40 A

c) 0.80 A

d) 1.6 A

What is the magnitude of the gravitational force of attraction between two 0.425-kilogram soccer balls when the distance between their centers is 0.500 meter?

a) 2.41 × 10^−11 N

b) 4.82 × 10^−11 N

c) 5.67 × 10^−11 N

d) 1.13 × 10^−11 N

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