AP Physics Unit 3

AP Physics Unit 3

12th Grade

15 Qs

quiz-placeholder

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AP Physics Unit 3

AP Physics Unit 3

Assessment

Quiz

Science

12th Grade

Practice Problem

Hard

NGSS
HS-PS2-1, HS-PS2-4, HS-PS2-2

+6

Standards-aligned

Created by

Lisa Thompson

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

A rod on a horizontal tabletop is pivoted at one end and is free to rotate without friction about a vertical axis, as shown in the diagram.  A force F is applied at an angle θ to the rod.  If F were to be applied perpendicular to the rod, at what distance from the axis should it be applied in order to produce the same amount of torque?

L sin θ

L cos θ

L tan θ

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

A ball is suspended by a lightweight string, as shown in the figure.   The ball is displaced to position 1 and released. The four labelled positions are evenly spaced along the arc of the ball's motion.  
Between which adjacent pairs is the gain in kinetic energy the greatest?

1 and 2

2 and 3

3 and 4

They are all equal

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A solid metal ball and a hollow plastic ball of the same external radius are released from rest in a large vacuum chamber.  When each has fallen 1m, they both have the same

Speed

Inertia

Change in Potential Energy

Momentum

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A student weighing 700 N climbs at a constant speed to the top of an 8m verticle rope in 10 s.  The average power expended by the student to overcome gravity is most nearly

1.1 W

87.5 W

560W

875 W

Tags

NGSS.HS-PS2-4

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Three forces act on an object.  If the object is in translational equilibrium, which of the following must be true:
i. The vector sum of the three forces must equal zero.
ii. The magnitude of the three forces must be equal.
iii. All three forces must be parallel.

i only

ii only

i & iii only

i, ii, & iii only

Tags

NGSS.HS-PS2-1

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

The electrical resistance between X and Y is

3/4 Ω

1 1/3 Ω

2 Ω

4 Ω

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

The figure above shows two particles, each with a charge of Q+, that are located at the opposite corners of a square with a side d.
What is the direction of the net electric field at point P.

 ↖

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

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