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Physics & Chemistry, Ch.3, Physical i Science

Authored by Emily Quang

Physics

8th Grade

NGSS covered

Used 1+ times

Physics & Chemistry, Ch.3, Physical i Science
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11 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is the correct definition for work?

Work is the transfer of energy that occurs when a force is applied over a distance.

Work is not the transfer of energy that occurs when a force is applied over a distance.

Work is the transfer of levers that occurs when a force is applied over a distance.

Work is the transfer of energy that occurs when a newton is applied over a distance.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

2.

FILL IN THE BLANK QUESTION

30 sec • 1 pt

_____ is the rate at which work is done.

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What is the SI unit of work and energy

newton

meters

joule

kilometers

4.

FILL IN THE BLANK QUESTION

45 sec • 1 pt

The __________ of a machine is the ratio of the output work to the input work.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is the correct equation for mechanical advantage?

MA = F in / F out

MA = F out / F in

MA = d/t

MA = lwh

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is the correct equation for efficiency?

efficiency = (W in / W out) 100%

efficiency = (W out / W in) 101%

efficiency = (W out / W in) 50%

efficiency = (W out / W in) 100%

7.

FILL IN THE BLANK QUESTION

30 sec • 1 pt

Two or more simple machines that operate together form a ________ machine.

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