Chapter 14 Simple Machines Test Flashcards

a slanted surface used to raise an object is a(n) ______________________

NW/W: carrying laundry to the washing machine

NW/W: pushing a box from the bottom of a hill to the top of the hill

NW/W: pulling a sled across a field covered with snow

NW/W: lifting a book bag off the floor

NW/W: carrying a ball

NW/W: throwing a ball

NW/W: hitting a ball

NW/W: dropping a ball

a device that does work with only one movement and changes the size or direction of a force is a(n) ________________________

a bar that is free to pivot about a fixed point is a __________

the rate at which work is done is called ___________

an inclined plane with two sloping sides forms a machine called a __________

an inclined plane wrapped around a cylinder post is a _______

a winding mountain road is an example of a(n) ________

when two or more simple machines work together, they are called a(n) __________________________

an object is moving due west. you push the object due west. is work being done?

which of the following is a moving inclined plane? (a see-saw, a staircase, a pulley, a wedge)

the effort force you exert is the _________ force

the effort force a machine exerts is the ____________ force

the mechanical advantage that makes work easiest is one that is ________ (large, small, or zero)

in order for work to be done, what two things MUST be in the same direction?

a _______ is an inclined plane wrapped around a cylinder

what is the difference between a wedge and an inclined plane?

C/S: lawnmower

C/S: wheel and axle

C/S: see-saw

C/S: shovel

C/S: can opener

C/S: bicycle

C/S: baseball bat

C/S: tooth

C/S: can

6S: knife

6S: wheelchair ramp

6S: threaded bolt

6S: teeth

6S: leaf rake

6S: door knob

6S: window blinds

6S: nail