Physics & Chemistry, Ch.3, Physical i Science
Authored by Emily Quang
Physics
8th Grade
NGSS covered
Used 1+ times
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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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