Question 1

A plastic tube is arranged on a lab tabletop as shown. A small sphere enters one end of the tube with enough speed to come out the other end of the tube.

Accepted Answer

https://uploads.quizalize.com/aba1625c-fc9b-40e6-8394-fb29f3ac57c7/question/03d2236f9e719728577746798e29268a5808b27e.png

Answer

https://uploads.quizalize.com/aba1625c-fc9b-40e6-8394-fb29f3ac57c7/question/ba27c5b8fd07ea3be61287bb284823f21762685d.png

Answer

https://uploads.quizalize.com/aba1625c-fc9b-40e6-8394-fb29f3ac57c7/question/90d4c840d3a3f53d6353388b7060ad9a4b94c46e.png

Answer

https://uploads.quizalize.com/aba1625c-fc9b-40e6-8394-fb29f3ac57c7/question/b2ec9cfdae0eef88ec3ddb9b6456253cc666d899.png

Question 2

A $1.5-kg$ block on a flat surface is pushed rapidly and then released. After release, the block slides for a short distance and comes to a stop.

Which option best identifies the forces that directly affect the block’s horizontal motion before and after it is released, and correctly describes their effects?

Accepted Answer

Before: Push and friction (push speeds up; friction opposes motion). After: Friction only (opposes motion until the block stops).

Answer

Before: Push only (speeds it up). After: Gravity only (slows it down).

Answer

Before: Normal force and gravity (speed the block up). After: Normal force only (slows it down).

Answer

Before: Friction only (speeds it up). After: Push and friction (both slow it down).

Question 3

A photograph of a bird perched on a fence post is shown.

Which description best identifies the action-reaction pair between the bird and the fence post?

Accepted Answer

Action: The force of the bird on the fence post

Reaction: The force of the fence post on the bird

Answer

Action: The force of the bird on the wires

Reaction: The force of the wires on the fence post

Answer

Action: The force of the wires on the fence post

Reaction: The force of the fence post on the bird

Answer

Action: The force of the fence post on the bird

Reaction: The force of the bird on the wires

Related quizzes

Related quizzes