General
Simple Machines
Misc.
Circuits
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100
What is an engineer?
An engineer is a person who builds things for a purpose.
100
What are the 6 simple machines?
plane, lever, wedge, screw, pulley, wheel and axel
100
What is a black box?
a system that can not be seen into or understood easily.
100
When a battery gets hot, it is in a state called a________?
short circuit
100
Name 2 examples of a wedge?
axe, knife, sword, saw, hatchet
200
What is a model?
a representation or explanation of something to show how it looks or how it works.
200
How does a screw relate to an inclined plane?
It is one?
200
Name 3 black boxes in nature?
outer space, dinosaurs, the sun, black holes
200
What is the difference between a conductor and an insulator?
a conductor allows energy to flow through it. An insulator is an object that prevents electricity from flowing through it.
200
What does the wire on either the positive or the negative end of the battery need to touch in order to light the lightbulb?
the soldered tip and the metal threaded base
300
What is a scientist?
A Scientist is a person who studies to figure out answers to questions.
300
What is an inclined plane and what is an example of one?
An inclined plane is a ramp to make things easier and less work. a wheelchair ramp
300
What are the parts of a light bulb?
filament, support wires, metal threaded base, ceramic insulator, steel tip
300
Name 3 examples of insulators?
foam, wood, rubber
300
What is a variable in science?
anything that can change that might effect the outcome
400
Name 3 biology models?
solar system, brain, heart
400
A lever has an effort, a load and a ______?
pivot/fulcrum
400
What is something you could use a humdinger for?
alarm clock
400
True or False? An open circuit allows energy to flow through it?
False
400
What is the definition of a switch?
a device used to open and close circuits
500
What is consensus?
When a group of people come to an agreement
500
How many simple machines involve inclined planes and what are they?
3 Wedge, lever, screw
500
What part of a lightbulb lights up?
the filament
500
What is the difference between an open circuit and a short circuit?
An open circuit is when there is not a full circle of flowing electricity A short circuit is when the electricity if trapped.
500
What models and designs combined to make a hum-dinger
wheel and axle black box lever pulley
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