Physical Science Unit 6 Test Test A

The rate at which work is accomplished is called

• work

• power

• momentum

• force

Work can also be defined as a transfer of

• force

• pressure

• energy

• power

Tags

NGSS.HS-PS3-3

If you apply a force of 10,000 N on the back of a car while trying to push a car out of ditch and the car never moves, how much work have you done?

• 10,000 J

• 5000 J

• 0 J

• 2500 J

The appropriate unit for work is

• Newton

• Kilogram

• Joule

• Kilopascal

______ is done when a force is applied to an object and the object moves as a result

• power

• pressure

• kinetic energy

• work

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

Without changing the actual amount of work being done, how can power be increased?

• decrease the amount of time the work was done in

• increase the amount of time the work was done in

If a machine had a mechanical advantage of 8, this would mean

• work would seem 8 times easier to do

• effort force is decreased by 16%

• work would seem 8 times harder to do

• input distance is increased by a factor of 4

The 2 simple machines that are a modified versions of the inclined plane are the _____ and the _____

• pulley / wheel and axle

• wedge / screw

• lever / pulley

• wedge / wheel and axle

The number of times a machine multiplies your effort force is called

• leverage

• mechanical advantage

• resultant vector

• recumbent vector

The unit of mechanical advantage is

• Joule

• Newton

• Torr

• it has no unit