Guaranteed Pass.
Which law states that temperature and pressure are directly related when volume is held constant
? correct answers (b) Amontons's law
What is the density of an object with a mass of 27 g and a volume of 9.0 cm3? correct answers
(a) 3.0 g/cm3
How many significant digits are in 0.020 63? correct answers (b) 4
What is the attractive force between unlike molecules? correct answers (d) adhesion
What device measures altitude? correct answers (d) altimeter
What is the average speed of a person who walks 28 km in 7.0 h? correct answers (b) 4.0 km/h
What is the ratio of input distance to output distance? correct answers (a) IMA
What law states that the force required to accelerate an object at a certain rate equals the object's
mass times the desired acceleration? correct answers (c) second law of motion
What is the rate of doing work? correct answers (c) power
What is the product of an object's mass and velocity? correct answers (b) momentum
What causes an object to travel in a curved path rather than in a straight line? correct answers (b)
centripetal force
, What principle states that the buoyant force experienced by an object is exactly equal to the
weight of the fluid displaced? correct answers (d) Archimedes' principle
What is the SI unit of pressure? correct answers (a) pascal
Who discovered the laws of motion and gravitation? correct answers (b) Sir Issac Newton
What is the efficiency of a machine that has work output of 630. J and a work input of 700. J?
correct answers (c) 90.0%
What is the fluid friction that tends to slow an object as it moves through a fluid? correct answers
(a) drag
What is the force on an object that is generated by relative motion between the object and a fluid
and that is perpendicular to the direction of the fluid flow? correct answers (c) lift
What is the science of shaping objects to allow the smooth flow of fluids around them and
reduce drag? correct answers streamlining
What property of a gas must remain constant for Boyles's law to be used? correct answers
temperature
What is the system of measurement was designed by French scientists to be simpler to learn and
use than the F.P.S. system? correct answers metric system
What is the mass in a certain volume? correct answers density
What type of lever has the input force applied between the fulcrum and output force? correct
answers class 3 lever