Show:
A
B
C
D
E
100
Which one does not fit the rest? a)lever b)inclined plane c)nail d)wedge
What is c)nail
100
What type of simple machine is a ferris wheel? a)pulley b)inclined plane c)screw and gears d)wheel and axle
What is d)wheel and axle
100
What is used to split something? (It has a thin edge, and a wider, flat edge.)
What is a wedge!
100
Nutcrackers, pliers, and ice tongs are all examples of: a)levers b)inclined planes c)screws d)pulleys
What is a)levers
100
Which of the following is a type of simple machine that is made from two inclined planes? a)pulley b)wedge c)screw d)lever
What is b)wedge
200
T/F: Work is the term for pushing or pulling on an object to make it move.
What is true
200
T/F: Complex machines are made up of only one machine.
What is false: simple machines are made up of only one machine; complex machines are made up or many parts/ two or more machines.
200
T/F: A wheel and axle, lever, and wedge are all parts of a pair of scissors.
What is false: can opener, not scissors (scissors have a lever, wedge, and screw)
200
T/F: Simple machines increase the amount of work needed to do a task.
What is false: they decrease the amount of work.
200
T/F: A ramp that has a steep slope will require more force to move up than a ramp that is less steep.
What is true.
300
The fulcrum should be placed (closer to/farther from) the _______ in order to lift a heavy load with as little effort as possible.
What is closer to, load.
300
Work is ___________ or ___________ on an object to make it move.
What is pushing/pulling
300
Effort is __________ when another pulley is added to a compound pulley.
What is reduced
300
An axe is an example of a(n) _________.
What is a wedge.
300
A screw is an example of a(n) ____________.
What is a screw itself is a simple machine, the threads are an inclined plane too
400
What simple machines can be found in a can opener? (List all 3.)
What is wedge, lever, wheel and axle.
400
What simple machines are in a pair of scissors? (List both.)
What is wedge, lever, (and screw).
400
What parts make up the simple machines for a pair of scissors?
What is handles (levers) and blades (wedges)
400
What parts make up the simple machines for a can opener?
What is lever = handle, wedge = circular blade, wheel and axle = the handle that turns in order to turn the can
400
List 4 of the 6 simple machines. Give an example of at least 3 of them.
What is 1)screw 2)wedge 3)lever 4)inclined plane 5)pulley 6)wheel and axle *Examples will vary; ask me if you are uncertain of the answer given
500
A box is sitting on a ramp. Why does it not slide down the ramp?
What is Friction is acting against the gravitational pull on the box.
500
What simple machines are in a screw and a screw driver? How do each (screw, screwdriver) make work easier?
What is Screw: screw, inclined plane/ Screwdriver: wheel and axle. The screw has grooves that makes work easier when they turn with ease and less work. A screwdriver makes work easier because when you turn the plastic handle (the wheel), the metal blade (the axle) also turns.
500
Compare and contrast complex machines and simple machines.
What is answers will vary. Different: Complex machines: made up of many parts, more than one simple machine. Simple machines: made up of one piece/part. Similar: They both have simple machines.
500
In a compound pulley, what happens when an additional pulley is added?
What is the amount of effort needed is reduced/decreased.
500
How does a wedge function?
What is a force strikes the flat end and drives the thin/narrow end forward