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  5. Chapter 4: Work And Energy

Chapter 4: Work and Energy

Authored by Charity Mannix

Science

9th - 12th Grade

NGSS covered

Used 1+ times

Chapter 4: Work and Energy
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45 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

In which of the following situations do your arms do work on books?

dropping a stack of books onto a table
carrying a heavey stack of books
holding a heavy stak of books while standing
picking up a pile of books from the floor

2.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

How much ork is done lifting a 9.10 kg box straight up onto a shelf that is 1.80 m high?

16 J
50 J
160 J
5 J

3.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

A 10 kg box sits on the floor. Approximately how high would you have to lift the box to increse gravitational potentila energy by 350 J?

15 m
7.0 m
3.6 m
35 m

4.

FILL IN THE BLANK QUESTION

30 sec • 2 pts

As you throw a ball, you exert a force on that ball of 4.2 N. You exert this force on the ball while the ball moves a distance of 0.50 m. The ball then leaves your hand and travels a horizontal distance of 8.5 m to your friend. How much work have you done on the ball?

Tags

IL.NGSSDCI.SCI.MS-PS3-5

5.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

It takes 600 J of work to lift a crate straight up but 1200 J to push that crate up a ramp to same height. What is the efficiency of the ramp?

30%
75%
50%
200%

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-4

6.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Compare the output force with the input force for a machine that has a mechanical advantage that is greater than one.

The output force is equal to the input force
More information is needed.
The output force is greater than the input force
The output force is less than the input force

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

7.

FILL IN THE BLANK QUESTION

30 sec • 2 pts

An input force of 80 N is used to lift an object weighing 240 N with a system of pulleys. What is the mechanical advantage of the pulley system?

Tags

NGSS.MS-PS2-2

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