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Work, Power, and Simple Machines

Authored by Aida DeQuarto

Physics

6th - 8th Grade

NGSS covered

Used 17+ times

Work, Power, and Simple Machines
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30 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The unit used to measure power is the:

Watt (W)
Joule (J)
Newton (N)

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The unit used to measure work is the:

Newton (N)
Joule (J)
Meter (m)
Watt (W)

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Work is being done when you:

apply a force to an object
do not apply a force to an object
Exert a force that causes an object to move in the direction of the force

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Power is defined as:

how strong someone or something is
the rate (how fast) work is done
how much work you do

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In which situation is work being done?

You study your notes for 2 hours
You kick a soccer ball into the field
You push a heavy object that does not move

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Tim and Ann are both lifting identical bags of groceries, but Ann lifts them twice as fast. This example involves twice as much:

work
time
power

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT an example of work according to the science definition of work?

studying notecards for 2 hours
hitting a baseball into the outfield
lifting a sign in the air

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