Mighty machines
Energize it
Newton Rules
Work it out
Crazy Chemistry
100
The simple machine represented by a broom, rake, tennis racket, and leg.
What is a lever?
100
the type of energy created by friction
What is heat energy?
100
objects at rest remain at rest, objects in motion remain in motion unless acted on by an external force
What is Newton's first law of motion?
100
the formula for work
What is force x distance?
100
the symbols of Iron, Lead, and Carbon
What is Fe, Pb, and C?
200
The unit of force.
What is the Newton?
200
the type of energy stored in food or fuels
What is chemical energy/potential energy?
200
the forces that prohibits a machine from being 100% efficient
What is gravity and friction?
200
the unit for work
What is joule (J)?
200
the elements and number of atoms in the compound HgS2O4
What is Mercury, 2 Sulfur, and 4 Oxygen?
300
The ratio of work output to work input, measured as a percent.
What is efficiency?
300
a 15 N object is sitting on a shelf 3 m high
What is 45 J of potential energy?
300
a soccer ball will accelerate more than a bowling ball when hit with the same force due to what?
What is Newton's 2nd law, F=ma?
300
20 N is used to push an object 2 m
What is 40 J?
300
heat given off in a reaction
What is exothermic?
400
How the length of an inclined plane affects the effort force.
What is the longer the inclined plane the less effort you need.
400
a 100 kg object is traveling at a velocity of 3 m/s
What is 450 J of kinetic energy?
400
the definition of Newton's 3rd law and an example
What is for every action there is an equal an opposite reaction? balloon on a string, rocket launch
400
a force of 50 N is used to push a chair but it will not move
What is 0 joules, or no work?
400
what enters a reaction must be there at the end is this law
What is law of conservation of matter?
500
how the placement of the fulcrum on a lever affects the effort force
What is the closer the fulcrum is to the resistance, the less effort needed
500
an 84 kg object is moving at a velocity of 5 m/s
What is 1050 J of kinetic energy?
500
a full roller coaster is harder to stop due to this
What is momentum?
500
100 joules of work is done to push a table 5 m
What is 20 N of force?
500
the four characteristics of a chemical reaction
What is color change, temperature change, gas or odor, new substance?
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