YAY MATH!
Handy Manny
Follow the LAW
Scientist Status
DeFINEEEEE
100
What is the density of an object with a mass of 27 g and a volume of 9.0 cm3?
3.0 g/cm3
100
What device measures altitude?
altimeter
100
What law states that TEMPERATURE and PRESSURE are DIRECTLY related when volume is held constant?
100
What is a factor that is CHANGED to test a hypothesis?
independent variable
100
What is the RATE of doing work?
POWER
200
What is the average speed of a person who walks 28 km in 7.0h?
4.0 km/h
200
What class of lever has the input force applied between the fulcrum and output force?
Class 3 lever
200
What law states that the force required to accelerate an object at a certain rate equals the object's MASS TIMES its desired ACCELERATION?
Second Law of Motion
200
In the engineering design process, what is any characteristic REQUIRED for a design to function?
CRITERIA
200
What is the product of an objects mass and velocity?
Momentum :)
300
Express 2702 in Scientific notation?
2.702 x 103
300
T/F: The device that uses an airtight metal box with thin, flexible walls to measure pressure is an aneroid barometer.
true!
300
What law states that if the pressure of a gas is constant, its VOLUME and TEMPERATURE are directly proportional?
Charles' law
300
What is a conclusion based on reasoning from evidence?
inference!
300
What is the attractive force between UNLIKE molecules?
ADhesion
400
A sample of gas occupies 4.0L at a pressure of 102.2 kPa. What is the new volume if the pressure is increased to 116.8 kPa?
3.5 L
400
What is the ability for other scientists to reach the same conclusion by performing the same experiment under different conditions and by performing other experiments to test the same hypothesis?
REPRODUCIBILITY
400
According to Archimedes, an object immersed in water appears to lose its __________.
weight
400
What valid form of inference supposes that when the consequent is false the antecedent must be false?
denying the consequent
400
What causes an object to travel in a curved path rather than a straight line?
Centripetal force (around a Center!)
500
What is a car's acceleration in the direction of motion when velocity changes from 20. m/s to 60. m/s in 10.s?
4.0 m/s2
500
What fallacy occurs when a term is misleadingly used with two different meanings in a single argument?
Equivocation
500
Who discovered the laws of motion and gravitation?
Sir Isaac Newton
500
What system of measurement was designed by French scientists to be simpler to learn and use than the F.P.S. system?
metric system (or SI)
500
What is the fluid friction that tends to slow an object as it moves through a fluid?
Drag