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Physics

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Hazel Pacocha

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Cards in this guide (14)
How can you identify a fixed pulley

It is set in one position and cannot move.

apex :)

If it takes 100 N to move a box 5 meters what is the work done on the box

500

Momentum is defined as the rate at which work is done

false

Is it bad if you have a heavy period on one month and a light one the next month

No it is not bad, as some ladies have a heavy period for one month and then a light one or they may have two heavy periods and then one light one also.

What the the two main states of mechanical energy

Potential energy and Kinetic energy

When a book falls from a shelf to the ground without anyone pushing on it no work is done on the book plus

false

If you want to lift a 5 kg box to a height of 2 meters how much work must be done

C.50 j

It takes 200 N to move a box 10 meters in 8 seconds How much power is required

250 W

What is an example of conditions not producing work

the momentum must be greater than the force . the force may be very large

How much work must be done on a 5 kg snowboard to increase its speed from 2 ms to 4 ms

work=mass*speed,5*2=10

In a collision a vehicle that rebounds off the object it trikes experiences less force than if it crumples assuming the time is the same in both situations

false

If the force moving an object points at least partially in the opposite direction of the object's motion what is the work considered to be

negative

How long can you car be parked along freeway before towed

Four hours

Which of the following items does not use a wheel and axle (Apex)

a bicycle

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