CRCT Practice Flashcards
Lauren measured the volume of a small amount of water. The measurements were: 2.1 ml, 2.,4 ml, and 2.3 ml. The actual volume is 3.9. What best describes the statement(1)?
The measurements were not accurate, but they were precise.
Which is an example of a model (1)? A. A map of a birds migration route B. A computer diagram of a car C. A small sculpture of a new lamp D. An architect's drawing of a mall
All of the above
John made an experiment where he looked at the difference between the temperature of a balloon and how it affects its volume. What is the responding and manipulated variable (1)?
Responding: volume of balloon
Manipulated: temperature of balloon
Chemical energy is the potential energy of (2)... A. Temperature B. Bonds between atoms C. Electricity D. Light
B. Bonds between atoms
Density relates the mass of a material to the material’s (2)…
Volume
Which pair of terms best describe the chemical change below (2)?
H + O➡️ H2O + E
Chemical and exothermic
A state of matter with a definite volume but no definite shape is a(n) (3)…
Liquid
Salt and quarts turn to liquids as they are heated. What type of solids are these (3)?
Crystalline
What state of matter is is steam, fog, and clouds (3)?
Liquid
What is the pressure if a force of 500 N acts on an area of 10m squared (3)?
5 Pa (Pressure= Force/Area)
Elements that are gases at room temperature are most likely to be (4)…
A. Metal
B. Metalloid
C. Nonmetal
Nonmetal
In the modern periodic table, elements are arranged by (4)…
A. Atomic mass
B. Atomic number
C. Number of electrons
Atomic number (electron numbers can vary due to ions)
The group that is most reactive is (4)... A. Alkali B. Noble gas C. Carbon family A. Alkaline earth
Alkali ( tied with halogens)
The group that is least reactive is (4)... A. Alkali B. Noble gas C. Carbon family A. Alkaline earth
Noble gas
